125807844 has 48 divisors (see below), whose sum is σ = 308883456. Its totient is φ = 39801600.

The previous prime is 125807839. The next prime is 125807863. The reversal of 125807844 is 448708521.

It is a happy number.

It is a super-2 number, since 2×125807844² = 31655227223856672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14749 + ... + 21659.

It is an arithmetic number, because the mean of its divisors is an integer number (6435072).

Almost surely, 2^125807844 is an apocalyptic number.

It is an amenable number.

125807844 is an abundant number, since it is smaller than the sum of its proper divisors (183075612).

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

125807844 is a wasteful number, since it uses less digits than its factorization.

125807844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6996 (or 6994 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 125807844 is about 11216.4095859593. The cubic root of 125807844 is about 501.0748132308.

The spelling of 125807844 in words is "one hundred twenty-five million, eight hundred seven thousand, eight hundred forty-four".