315161 has 8 divisors (see below), whose sum is σ = 393024. Its totient is φ = 245520.

The previous prime is 315127. The next prime is 315179. The reversal of 315161 is 161513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315161 - 2⁶ = 315097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315181) 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, 1970 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (49128).

2³¹⁵¹⁶¹ is an apocalyptic number.

It is an amenable number.

315161 is a deficient number, since it is larger than the sum of its proper divisors (77863).

315161 is a wasteful number, since it uses less digits than its factorization.

315161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111.

The product of its digits is 90, while the sum is 17.

The square root of 315161 is about 561.3920198934. The cubic root of 315161 is about 68.0525113421.

Adding to 315161 its reverse (161513), we get a palindrome (476674).

The spelling of 315161 in words is "three hundred fifteen thousand, one hundred sixty-one".