516057145 has 4 divisors (see below), whose sum is σ = 619268580. Its totient is φ = 412845712.

The previous prime is 516057079. The next prime is 516057163. The reversal of 516057145 is 541750615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77070841 + 438986304 = 8779^2 + 20952^2 .

It is a cyclic number.

It is not a de Polignac number, because 516057145 - 2²³ = 507668537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516057145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51605710 + ... + 51605719.

It is an arithmetic number, because the mean of its divisors is an integer number (154817145).

Almost surely, 2^516057145 is an apocalyptic number.

It is an amenable number.

516057145 is a deficient number, since it is larger than the sum of its proper divisors (103211435).

516057145 is a wasteful number, since it uses less digits than its factorization.

516057145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103211434.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 516057145 is about 22716.8911825540. The cubic root of 516057145 is about 802.1075393261.

The spelling of 516057145 in words is "five hundred sixteen million, fifty-seven thousand, one hundred forty-five".