125198912 has 28 divisors (see below), whose sum is σ = 254506476. Its totient is φ = 61071360.

The previous prime is 125198911. The next prime is 125198971. The reversal of 125198912 is 219891521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8904256 + 116294656 = 2984^2 + 10784^2 .

It is not an unprimeable number, because it can be changed into a prime (125198911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21233 + ... + 26480.

It is an arithmetic number, because the mean of its divisors is an integer number (9089517).

Almost surely, 2^125198912 is an apocalyptic number.

It is an amenable number.

125198912 is an abundant number, since it is smaller than the sum of its proper divisors (129307564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125198912 is an equidigital number, since it uses as much as digits as its factorization.

125198912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47766 (or 47756 counting only the distinct ones).

The product of its digits is 12960, while the sum is 38.

The square root of 125198912 is about 11189.2319664935. The cubic root of 125198912 is about 500.2650754452.

The spelling of 125198912 in words is "one hundred twenty-five million, one hundred ninety-eight thousand, nine hundred twelve".