75461631 has 16 divisors (see below), whose sum is σ = 116707584. Its totient is φ = 42476544.

The previous prime is 75461627. The next prime is 75461641. The reversal of 75461631 is 13616457.

It is not a de Polignac number, because 75461631 - 2² = 75461627 is a prime.

It is a super-2 number, since 2×75461631² = 11388915506360322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75461592 and 75461601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75461641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25410 + ... + 28223.

It is an arithmetic number, because the mean of its divisors is an integer number (7294224).

Almost surely, 2^75461631 is an apocalyptic number.

75461631 is a deficient number, since it is larger than the sum of its proper divisors (41245953).

75461631 is a wasteful number, since it uses less digits than its factorization.

75461631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53710.

The product of its digits is 15120, while the sum is 33.

The square root of 75461631 is about 8686.8654300616. The cubic root of 75461631 is about 422.5797960927.

The spelling of 75461631 in words is "seventy-five million, four hundred sixty-one thousand, six hundred thirty-one".