45315445 has 16 divisors (see below), whose sum is σ = 63417600. Its totient is φ = 31072272.

The previous prime is 45315443. The next prime is 45315449. The reversal of 45315445 is 54451354.

It is a happy number.

It is not a de Polignac number, because 45315445 - 2¹ = 45315443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45315443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11497 + ... + 14926.

It is an arithmetic number, because the mean of its divisors is an integer number (3963600).

Almost surely, 2^45315445 is an apocalyptic number.

It is an amenable number.

45315445 is a deficient number, since it is larger than the sum of its proper divisors (18102155).

45315445 is an equidigital number, since it uses as much as digits as its factorization.

45315445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26449 (or 26435 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 45315445 is about 6731.6747544723. The cubic root of 45315445 is about 356.5185101991.

Adding to 45315445 its reverse (54451354), we get a palindrome (99766799).

The spelling of 45315445 in words is "forty-five million, three hundred fifteen thousand, four hundred forty-five".