45036531 has 6 divisors (see below), whose sum is σ = 65052780. Its totient is φ = 30024348.

The previous prime is 45036499. The next prime is 45036539. The reversal of 45036531 is 13563054.

45036531 is a `hidden beast` number, since 4 + 5 + 0 + 3 + 653 + 1 = 666.

It is not a de Polignac number, because 45036531 - 2⁵ = 45036499 is a prime.

It is a super-2 number, since 2×45036531² = 4056578249027922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45036495 and 45036504.

It is not an unprimeable number, because it can be changed into a prime (45036539) 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 5 ways as a sum of consecutive naturals, for example, 2502021 + ... + 2502038.

It is an arithmetic number, because the mean of its divisors is an integer number (10842130).

Almost surely, 2^45036531 is an apocalyptic number.

45036531 is a deficient number, since it is larger than the sum of its proper divisors (20016249).

45036531 is a wasteful number, since it uses less digits than its factorization.

45036531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004065 (or 5004062 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 45036531 is about 6710.9262400953. The cubic root of 45036531 is about 355.7855539484.

Adding to 45036531 its reverse (13563054), we get a palindrome (58599585).

The spelling of 45036531 in words is "forty-five million, thirty-six thousand, five hundred thirty-one".