520457145 has 16 divisors (see below), whose sum is σ = 896788032. Its totient is φ = 256224960.

The previous prime is 520457143. The next prime is 520457153. The reversal of 520457145 is 541754025.

It is not a de Polignac number, because 520457145 - 2¹ = 520457143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520457143) 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, 1334311 + ... + 1334700.

It is an arithmetic number, because the mean of its divisors is an integer number (56049252).

Almost surely, 2^520457145 is an apocalyptic number.

It is an amenable number.

520457145 is a deficient number, since it is larger than the sum of its proper divisors (376330887).

520457145 is a wasteful number, since it uses less digits than its factorization.

520457145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669032.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 520457145 is about 22813.5298671644. The cubic root of 520457145 is about 804.3807307323.

The spelling of 520457145 in words is "five hundred twenty million, four hundred fifty-seven thousand, one hundred forty-five".