516307161 has 4 divisors (see below), whose sum is σ = 688409552. Its totient is φ = 344204772.

The previous prime is 516307157. The next prime is 516307163. The reversal of 516307161 is 161703615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 516307161 - 2² = 516307157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516307163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86051191 + ... + 86051196.

It is an arithmetic number, because the mean of its divisors is an integer number (172102388).

Almost surely, 2^516307161 is an apocalyptic number.

It is an amenable number.

516307161 is a deficient number, since it is larger than the sum of its proper divisors (172102391).

516307161 is a wasteful number, since it uses less digits than its factorization.

516307161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172102390.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 516307161 is about 22722.3933818601. The cubic root of 516307161 is about 802.2370516897.

The spelling of 516307161 in words is "five hundred sixteen million, three hundred seven thousand, one hundred sixty-one".