125319818 has 32 divisors (see below), whose sum is σ = 215323920. Its totient is φ = 54190080.

The previous prime is 125319811. The next prime is 125319823. The reversal of 125319818 is 818913521.

It can be written as a sum of positive squares in 8 ways, for example, as 55547209 + 69772609 = 7453^2 + 8353^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125319811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123698 + ... + 124706.

Almost surely, 2^125319818 is an apocalyptic number.

125319818 is a deficient number, since it is larger than the sum of its proper divisors (90004102).

125319818 is a wasteful number, since it uses less digits than its factorization.

125319818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322.

The product of its digits is 17280, while the sum is 38.

The square root of 125319818 is about 11194.6334464332. The cubic root of 125319818 is about 500.4260608412.

The spelling of 125319818 in words is "one hundred twenty-five million, three hundred nineteen thousand, eight hundred eighteen".