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1910072135 = 5382014427
BaseRepresentation
bin111000111011001…
…0110001101000111
311221010010201101102
41301312112031013
512402434302020
6513311250315
765222226266
oct16166261507
94833121342
101910072135
118a0205514
1245381999b
1324594c1ca
1414196a5dd
15b2a4c475
hex71d96347

1910072135 has 4 divisors (see below), whose sum is σ = 2292086568. Its totient is φ = 1528057704.

The previous prime is 1910072123. The next prime is 1910072137. The reversal of 1910072135 is 5312700191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5312700191 = 44831185077.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1910072135 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1910072098 and 1910072107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1910072137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191007209 + ... + 191007218.

It is an arithmetic number, because the mean of its divisors is an integer number (573021642).

Almost surely, 21910072135 is an apocalyptic number.

1910072135 is a deficient number, since it is larger than the sum of its proper divisors (382014433).

1910072135 is an equidigital number, since it uses as much as digits as its factorization.

1910072135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382014432.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1910072135 is about 43704.3720353010. The cubic root of 1910072135 is about 1240.7470643496.

The spelling of 1910072135 in words is "one billion, nine hundred ten million, seventy-two thousand, one hundred thirty-five".

Divisors: 1 5 382014427 1910072135