125138258708 has 6 divisors (see below), whose sum is σ = 218991952746. Its totient is φ = 62569129352.

The previous prime is 125138258657. The next prime is 125138258741. The reversal of 125138258708 is 807852831521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70868828944 + 54269429764 = 266212^2 + 232958^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15642282335 + ... + 15642282342.

It is an arithmetic number, because the mean of its divisors is an integer number (36498658791).

Almost surely, 2^125138258708 is an apocalyptic number.

It is an amenable number.

125138258708 is a deficient number, since it is larger than the sum of its proper divisors (93853694038).

125138258708 is a wasteful number, since it uses less digits than its factorization.

125138258708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31284564681 (or 31284564679 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 50.

The spelling of 125138258708 in words is "one hundred twenty-five billion, one hundred thirty-eight million, two hundred fifty-eight thousand, seven hundred eight".