45685631 has 4 divisors (see below), whose sum is σ = 45705000. Its totient is φ = 45666264.

The previous prime is 45685597. The next prime is 45685669. The reversal of 45685631 is 13658654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13658654 = 2 ⋅6829327.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45685631 is a prime.

It is a super-2 number, since 2×45685631² = 4174353759736322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45685831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5561 + ... + 11058.

It is an arithmetic number, because the mean of its divisors is an integer number (11426250).

Almost surely, 2^45685631 is an apocalyptic number.

45685631 is a deficient number, since it is larger than the sum of its proper divisors (19369).

45685631 is a wasteful number, since it uses less digits than its factorization.

45685631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19368.

The product of its digits is 86400, while the sum is 38.

The square root of 45685631 is about 6759.1146609597. The cubic root of 45685631 is about 357.4866893181.

The spelling of 45685631 in words is "forty-five million, six hundred eighty-five thousand, six hundred thirty-one".