72125044 has 12 divisors (see below), whose sum is σ = 126346500. Its totient is φ = 36026048.

The previous prime is 72125041. The next prime is 72125057. The reversal of 72125044 is 44052127.

It can be written as a sum of positive squares in 2 ways, for example, as 66422500 + 5702544 = 8150^2 + 2388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72125041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4399 + ... + 12790.

It is an arithmetic number, because the mean of its divisors is an integer number (10528875).

Almost surely, 2^72125044 is an apocalyptic number.

It is an amenable number.

72125044 is a deficient number, since it is larger than the sum of its proper divisors (54221456).

72125044 is a wasteful number, since it uses less digits than its factorization.

72125044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18242 (or 18240 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 72125044 is about 8492.6464662083. The cubic root of 72125044 is about 416.2574605101.

The spelling of 72125044 in words is "seventy-two million, one hundred twenty-five thousand, forty-four".