45315641 has 6 divisors (see below), whose sum is σ = 52714170. Its totient is φ = 38841936.

The previous prime is 45315637. The next prime is 45315643. The reversal of 45315641 is 14651354.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 2019241 = 6580^2 + 1421^2 .

It is not a de Polignac number, because 45315641 - 2² = 45315637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45315643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462356 + ... + 462453.

It is an arithmetic number, because the mean of its divisors is an integer number (8785695).

Almost surely, 2^45315641 is an apocalyptic number.

It is an amenable number.

45315641 is a deficient number, since it is larger than the sum of its proper divisors (7398529).

45315641 is an equidigital number, since it uses as much as digits as its factorization.

45315641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924823 (or 924816 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 45315641 is about 6731.6893124980. The cubic root of 45315641 is about 356.5190242073.

Adding to 45315641 its reverse (14651354), we get a palindrome (59966995).

The spelling of 45315641 in words is "forty-five million, three hundred fifteen thousand, six hundred forty-one".