45320513 has 8 divisors (see below), whose sum is σ = 52028928. Its totient is φ = 38670624.

The previous prime is 45320489. The next prime is 45320531. The reversal of 45320513 is 31502354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45320513 - 2⁸ = 45320257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45320563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12956 + ... + 16077.

It is an arithmetic number, because the mean of its divisors is an integer number (6503616).

Almost surely, 2^45320513 is an apocalyptic number.

It is an amenable number.

45320513 is a deficient number, since it is larger than the sum of its proper divisors (6708415).

45320513 is a wasteful number, since it uses less digits than its factorization.

45320513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29263.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 45320513 is about 6732.0511733052. The cubic root of 45320513 is about 356.5318005056.

Adding to 45320513 its reverse (31502354), we get a palindrome (76822867).

The spelling of 45320513 in words is "forty-five million, three hundred twenty thousand, five hundred thirteen".