139275191556 has 96 divisors (see below), whose sum is σ = 368944128000. Its totient is φ = 45415409184.

The previous prime is 139275191543. The next prime is 139275191557. The reversal of 139275191556 is 655191572931.

It is a happy number.

139275191556 is a `hidden beast` number, since 1 + 3 + 9 + 2 + 75 + 19 + 1 + 556 = 666.

It is a super-2 number, since 2×139275191556² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (139275191557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13085685 + ... + 13096323.

It is an arithmetic number, because the mean of its divisors is an integer number (3843168000).

Almost surely, 2^139275191556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139275191556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184472064000).

139275191556 is an abundant number, since it is smaller than the sum of its proper divisors (229668936444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139275191556 is a wasteful number, since it uses less digits than its factorization.

139275191556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13278 (or 13270 counting only the distinct ones).

The product of its digits is 2551500, while the sum is 54.

The spelling of 139275191556 in words is "one hundred thirty-nine billion, two hundred seventy-five million, one hundred ninety-one thousand, five hundred fifty-six".