125404405204 has 12 divisors (see below), whose sum is σ = 236339071444. Its totient is φ = 57878956224.

The previous prime is 125404405201. The next prime is 125404405249. The reversal of 125404405204 is 402504404521.

It can be written as a sum of positive squares in 2 ways, for example, as 44491464900 + 80912940304 = 210930^2 + 284452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125404405201) 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, 1205811537 + ... + 1205811640.

Almost surely, 2^125404405204 is an apocalyptic number.

It is an amenable number.

125404405204 is a deficient number, since it is larger than the sum of its proper divisors (110934666240).

125404405204 is a wasteful number, since it uses less digits than its factorization.

125404405204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411623194 (or 2411623192 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 125404405204 its reverse (402504404521), we get a palindrome (527908809725).

The spelling of 125404405204 in words is "one hundred twenty-five billion, four hundred four million, four hundred five thousand, two hundred four".