45791513 has 8 divisors (see below), whose sum is σ = 46576488. Its totient is φ = 45010944.

The previous prime is 45791509. The next prime is 45791519. The reversal of 45791513 is 31519754.

It can be written as a sum of positive squares in 4 ways, for example, as 6390784 + 39400729 = 2528^2 + 6277^2 .

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 45791513 - 2² = 45791509 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 (45791519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24881 + ... + 26657.

It is an arithmetic number, because the mean of its divisors is an integer number (5822061).

Almost surely, 2^45791513 is an apocalyptic number.

It is an amenable number.

45791513 is a deficient number, since it is larger than the sum of its proper divisors (784975).

45791513 is a wasteful number, since it uses less digits than its factorization.

45791513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203.

The product of its digits is 18900, while the sum is 35.

The square root of 45791513 is about 6766.9426626801. The cubic root of 45791513 is about 357.7626491816.

The spelling of 45791513 in words is "forty-five million, seven hundred ninety-one thousand, five hundred thirteen".