125000012 has 24 divisors (see below), whose sum is σ = 230630400. Its totient is φ = 59116176.

The previous prime is 125000003. The next prime is 125000077. The reversal of 125000012 is 210000521.

It is a junction number, because it is equal to n+sod(n) for n = 124999957 and 125000002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78173 + ... + 79755.

It is an arithmetic number, because the mean of its divisors is an integer number (9609600).

Almost surely, 2^125000012 is an apocalyptic number.

It is an amenable number.

125000012 is a deficient number, since it is larger than the sum of its proper divisors (105630388).

125000012 is a wasteful number, since it uses less digits than its factorization.

125000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645 (or 2643 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 125000012 is about 11180.3404241553. The cubic root of 125000012 is about 500.0000160000. Note that the first 4 decimals are identical.

Adding to 125000012 its reverse (210000521), we get a palindrome (335000533).

The spelling of 125000012 in words is "one hundred twenty-five million, twelve", and thus it is an aban number.