125165218 has 16 divisors (see below), whose sum is σ = 202668480. Its totient is φ = 57796816.

The previous prime is 125165167. The next prime is 125165279. The reversal of 125165218 is 812561521.

It is a self number, because there is not a number n which added to its sum of digits gives 125165218.

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, 45580 + ... + 48247.

It is an arithmetic number, because the mean of its divisors is an integer number (12666780).

Almost surely, 2^125165218 is an apocalyptic number.

125165218 is a deficient number, since it is larger than the sum of its proper divisors (77503262).

125165218 is a wasteful number, since it uses less digits than its factorization.

125165218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93881.

The product of its digits is 4800, while the sum is 31.

The square root of 125165218 is about 11187.7262211765. The cubic root of 125165218 is about 500.2201936819.

The spelling of 125165218 in words is "one hundred twenty-five million, one hundred sixty-five thousand, two hundred eighteen".