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131309657274127 = 561312339342917
BaseRepresentation
bin11101110110110011101001…
…011110100011011100001111
3122012221002011210020002121111
4131312303221132203130033
5114202334134230233002
61143134453534312451
736441544500645253
oct3566635136433417
9565832153202544
10131309657274127
1138926127328402
1212888836658727
1358365a835c7c7
14245d5c8174263
15102a9eb22d3d7
hex776ce97a370f

131309657274127 has 4 divisors (see below), whose sum is σ = 131311996673176. Its totient is φ = 131307317875080.

The previous prime is 131309657274091. The next prime is 131309657274139. The reversal of 131309657274127 is 721472756903131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131309657274127 - 243 = 122513564251919 is a prime.

It is a super-2 number, since 2×1313096572741272 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131309657274197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169615328 + ... + 1169727589.

It is an arithmetic number, because the mean of its divisors is an integer number (32827999168294).

Almost surely, 2131309657274127 is an apocalyptic number.

131309657274127 is a deficient number, since it is larger than the sum of its proper divisors (2339399049).

131309657274127 is an equidigital number, since it uses as much as digits as its factorization.

131309657274127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339399048.

The product of its (nonzero) digits is 13335840, while the sum is 58.

The spelling of 131309657274127 in words is "one hundred thirty-one trillion, three hundred nine billion, six hundred fifty-seven million, two hundred seventy-four thousand, one hundred twenty-seven".

Divisors: 1 56131 2339342917 131309657274127