125029381155 has 32 divisors (see below), whose sum is σ = 240658060800. Its totient is φ = 54148061952.

The previous prime is 125029381121. The next prime is 125029381157. The reversal of 125029381155 is 551183920521.

It is not a de Polignac number, because 125029381155 - 2⁶ = 125029381091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125029381157) 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, 31333690 + ... + 31337679.

It is an arithmetic number, because the mean of its divisors is an integer number (7520564400).

Almost surely, 2^125029381155 is an apocalyptic number.

125029381155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125029381155 is a deficient number, since it is larger than the sum of its proper divisors (115628679645).

125029381155 is a wasteful number, since it uses less digits than its factorization.

125029381155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62671403.

The product of its (nonzero) digits is 108000, while the sum is 42.

The spelling of 125029381155 in words is "one hundred twenty-five billion, twenty-nine million, three hundred eighty-one thousand, one hundred fifty-five".