125405204 has 6 divisors (see below), whose sum is σ = 219459114. Its totient is φ = 62702600.

The previous prime is 125405201. The next prime is 125405207. The reversal of 125405204 is 402504521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125405201) and next prime (125405207).

It can be written as a sum of positive squares in only one way, i.e., 125395204 + 10000 = 11198^2 + 100^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125405204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125405201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15675647 + ... + 15675654.

It is an arithmetic number, because the mean of its divisors is an integer number (36576519).

Almost surely, 2^125405204 is an apocalyptic number.

It is an amenable number.

125405204 is a deficient number, since it is larger than the sum of its proper divisors (94053910).

125405204 is a wasteful number, since it uses less digits than its factorization.

125405204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31351305 (or 31351303 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 125405204 is about 11198.4464994034. The cubic root of 125405204 is about 500.5396892614.

Adding to 125405204 its reverse (402504521), we get a palindrome (527909725).

The spelling of 125405204 in words is "one hundred twenty-five million, four hundred five thousand, two hundred four".