125251263236 has 24 divisors (see below), whose sum is σ = 239142602496. Its totient is φ = 56926069920.

The previous prime is 125251263191. The next prime is 125251263259. The reversal of 125251263236 is 632362152521.

It is a self number, because there is not a number n which added to its sum of digits gives 125251263236.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254765 + ... + 561611.

It is an arithmetic number, because the mean of its divisors is an integer number (9964275104).

Almost surely, 2^125251263236 is an apocalyptic number.

It is an amenable number.

125251263236 is a deficient number, since it is larger than the sum of its proper divisors (113891339260).

125251263236 is a wasteful number, since it uses less digits than its factorization.

125251263236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316139 (or 316137 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The spelling of 125251263236 in words is "one hundred twenty-five billion, two hundred fifty-one million, two hundred sixty-three thousand, two hundred thirty-six".