75621136 has 20 divisors (see below), whose sum is σ = 146660752. Its totient is φ = 37773216.

The previous prime is 75621127. The next prime is 75621149. The reversal of 75621136 is 63112657.

It is a junction number, because it is equal to n+sod(n) for n = 75621098 and 75621107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22135 + ... + 25321.

Almost surely, 2^75621136 is an apocalyptic number.

It is an amenable number.

75621136 is a deficient number, since it is larger than the sum of its proper divisors (71039616).

75621136 is a wasteful number, since it uses less digits than its factorization.

75621136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678 (or 4672 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 75621136 is about 8696.0413982455. The cubic root of 75621136 is about 422.8773254654.

It can be divided in two parts, 75621 and 136, that added together give a palindrome (75757).

The spelling of 75621136 in words is "seventy-five million, six hundred twenty-one thousand, one hundred thirty-six".