125730644 has 12 divisors (see below), whose sum is σ = 236954004. Its totient is φ = 58029504.

The previous prime is 125730629. The next prime is 125730653. The reversal of 125730644 is 446037521.

It can be written as a sum of positive squares in 2 ways, for example, as 76562500 + 49168144 = 8750^2 + 7012^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125730644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208897 + ... + 1209000.

It is an arithmetic number, because the mean of its divisors is an integer number (19746167).

Almost surely, 2^125730644 is an apocalyptic number.

It is an amenable number.

125730644 is a deficient number, since it is larger than the sum of its proper divisors (111223360).

125730644 is a wasteful number, since it uses less digits than its factorization.

125730644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417914 (or 2417912 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 125730644 is about 11212.9676714062. The cubic root of 125730644 is about 500.9723000397.

The spelling of 125730644 in words is "one hundred twenty-five million, seven hundred thirty thousand, six hundred forty-four".