125172812 has 24 divisors (see below), whose sum is σ = 221837616. Its totient is φ = 61795328.

The previous prime is 125172811. The next prime is 125172829. The reversal of 125172812 is 218271521.

It is not an unprimeable number, because it can be changed into a prime (125172811) by changing a digit.

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, 210788 + ... + 211380.

It is an arithmetic number, because the mean of its divisors is an integer number (9243234).

Almost surely, 2^125172812 is an apocalyptic number.

It is an amenable number.

125172812 is a deficient number, since it is larger than the sum of its proper divisors (96664804).

125172812 is a wasteful number, since it uses less digits than its factorization.

125172812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1175 counting only the distinct ones).

The product of its digits is 2240, while the sum is 29.

The square root of 125172812 is about 11188.0656058141. The cubic root of 125172812 is about 500.2303098984.

The spelling of 125172812 in words is "one hundred twenty-five million, one hundred seventy-two thousand, eight hundred twelve".