45636131 has 4 divisors (see below), whose sum is σ = 45655392. Its totient is φ = 45616872.

The previous prime is 45636091. The next prime is 45636161. The reversal of 45636131 is 13163654.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45636131 is a prime.

It is a super-2 number, since 2×45636131² = 4165312905298322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45636094 and 45636103.

It is not an unprimeable number, because it can be changed into a prime (45636161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5480 + ... + 11013.

It is an arithmetic number, because the mean of its divisors is an integer number (11413848).

Almost surely, 2^45636131 is an apocalyptic number.

45636131 is a deficient number, since it is larger than the sum of its proper divisors (19261).

45636131 is a wasteful number, since it uses less digits than its factorization.

45636131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19260.

The product of its digits is 6480, while the sum is 29.

The square root of 45636131 is about 6755.4519463912. The cubic root of 45636131 is about 357.3575313780.

Adding to 45636131 its reverse (13163654), we get a palindrome (58799785).

The spelling of 45636131 in words is "forty-five million, six hundred thirty-six thousand, one hundred thirty-one".