45613631 has 4 divisors (see below), whose sum is σ = 52129872. Its totient is φ = 39097392.

The previous prime is 45613621. The next prime is 45613643. The reversal of 45613631 is 13631654.

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-45613631 is a prime.

It is a super-2 number, since 2×45613631² = 4161206666008322, 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 = 45613594 and 45613603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45613621) 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, 3258110 + ... + 3258123.

It is an arithmetic number, because the mean of its divisors is an integer number (13032468).

Almost surely, 2^45613631 is an apocalyptic number.

45613631 is a deficient number, since it is larger than the sum of its proper divisors (6516241).

45613631 is an equidigital number, since it uses as much as digits as its factorization.

45613631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516240.

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

The square root of 45613631 is about 6753.7864194835. The cubic root of 45613631 is about 357.2987923478.

It can be divided in two parts, 4561 and 3631, that added together give a 13-th power (8192 = 2¹³).

The spelling of 45613631 in words is "forty-five million, six hundred thirteen thousand, six hundred thirty-one".