125212543504 has 20 divisors (see below), whose sum is σ = 242807936976. Its totient is φ = 62552430752.

The previous prime is 125212543501. The next prime is 125212543523. The reversal of 125212543504 is 405345212521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 125212543504.

It is not an unprimeable number, because it can be changed into a prime (125212543501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3345874 + ... + 3383089.

Almost surely, 2^125212543504 is an apocalyptic number.

It is an amenable number.

125212543504 is a deficient number, since it is larger than the sum of its proper divisors (117595393472).

125212543504 is a wasteful number, since it uses less digits than its factorization.

125212543504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6730134 (or 6730128 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 125212543504 in words is "one hundred twenty-five billion, two hundred twelve million, five hundred forty-three thousand, five hundred four".