520132345 has 8 divisors (see below), whose sum is σ = 625133376. Its totient is φ = 415456176.

The previous prime is 520132321. The next prime is 520132351. The reversal of 520132345 is 543231025.

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 520132345 - 2²⁵ = 486577913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77677 + ... + 84106.

It is an arithmetic number, because the mean of its divisors is an integer number (78141672).

Almost surely, 2^520132345 is an apocalyptic number.

It is an amenable number.

520132345 is a deficient number, since it is larger than the sum of its proper divisors (105001031).

520132345 is a wasteful number, since it uses less digits than its factorization.

520132345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162431.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 520132345 is about 22806.4101734578. The cubic root of 520132345 is about 804.2133668221.

The spelling of 520132345 in words is "five hundred twenty million, one hundred thirty-two thousand, three hundred forty-five".