139902025081 has 192 divisors, whose sum is σ = 195890128896. Its totient is φ = 98761420800.

The previous prime is 139902025051. The next prime is 139902025099. The reversal of 139902025081 is 180520209931.

It is not a de Polignac number, because 139902025081 - 2⁵ = 139902025049 is a prime.

It is a super-2 number, since 2×139902025081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139902025031) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1916466061 + ... + 1916466133.

It is an arithmetic number, because the mean of its divisors is an integer number (1020261088).

Almost surely, 2^139902025081 is an apocalyptic number.

It is an amenable number.

139902025081 is a deficient number, since it is larger than the sum of its proper divisors (55988103815).

139902025081 is a wasteful number, since it uses less digits than its factorization.

139902025081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 139902025081 in words is "one hundred thirty-nine billion, nine hundred two million, twenty-five thousand, eighty-one".