45204513 has 16 divisors (see below), whose sum is σ = 64059840. Its totient is φ = 28354368.

The previous prime is 45204503. The next prime is 45204527. The reversal of 45204513 is 31540254.

It is a de Polignac number, because none of the positive numbers 2^k-45204513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45204503) 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, 13206 + ... + 16272.

It is an arithmetic number, because the mean of its divisors is an integer number (4003740).

Almost surely, 2^45204513 is an apocalyptic number.

It is an amenable number.

45204513 is a deficient number, since it is larger than the sum of its proper divisors (18855327).

45204513 is an equidigital number, since it uses as much as digits as its factorization.

45204513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121 (or 3087 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 45204513 is about 6723.4301513439. The cubic root of 45204513 is about 356.2273539314.

Adding to 45204513 its reverse (31540254), we get a palindrome (76744767).

The spelling of 45204513 in words is "forty-five million, two hundred four thousand, five hundred thirteen".