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139492153 = 947147299
BaseRepresentation
bin10000101000001…
…11101100111001
3100201110221021001
420110013230321
5241202222103
621501445001
73312443443
oct1024075471
9321427231
10139492153
1171815579
123a870761
1322b90148
1414751493
15c3a601d
hex8507b39

139492153 has 4 divisors (see below), whose sum is σ = 139640400. Its totient is φ = 139343908.

The previous prime is 139492141. The next prime is 139492163. The reversal of 139492153 is 351294931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 139492153 - 217 = 139361081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139492163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72703 + ... + 74596.

It is an arithmetic number, because the mean of its divisors is an integer number (34910100).

Almost surely, 2139492153 is an apocalyptic number.

It is an amenable number.

139492153 is a deficient number, since it is larger than the sum of its proper divisors (148247).

139492153 is an equidigital number, since it uses as much as digits as its factorization.

139492153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148246.

The product of its digits is 29160, while the sum is 37.

The square root of 139492153 is about 11810.6796163472. The cubic root of 139492153 is about 518.6207941046.

The spelling of 139492153 in words is "one hundred thirty-nine million, four hundred ninety-two thousand, one hundred fifty-three".

Divisors: 1 947 147299 139492153