125999044 has 6 divisors (see below), whose sum is σ = 220498334. Its totient is φ = 62999520.

The previous prime is 125999021. The next prime is 125999059. The reversal of 125999044 is 440999521.

It can be written as a sum of positive squares in only one way, i.e., 121837444 + 4161600 = 11038^2 + 2040^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15749877 + ... + 15749884.

Almost surely, 2^125999044 is an apocalyptic number.

It is an amenable number.

125999044 is a deficient number, since it is larger than the sum of its proper divisors (94499290).

125999044 is a wasteful number, since it uses less digits than its factorization.

125999044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31499765 (or 31499763 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 125999044 is about 11224.9295766165. The cubic root of 125999044 is about 501.3285255798.

The spelling of 125999044 in words is "one hundred twenty-five million, nine hundred ninety-nine thousand, forty-four".