313161 has 8 divisors (see below), whose sum is σ = 426624. Its totient is φ = 204240.

The previous prime is 313153. The next prime is 313163. The reversal of 313161 is 161313.

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

It is not a de Polignac number, because 313161 - 2³ = 313153 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 313161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313163) 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, 970 + ... + 1251.

It is an arithmetic number, because the mean of its divisors is an integer number (53328).

2³¹³¹⁶¹ is an apocalyptic number.

It is an amenable number.

313161 is a deficient number, since it is larger than the sum of its proper divisors (113463).

313161 is a wasteful number, since it uses less digits than its factorization.

313161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271.

The product of its digits is 54, while the sum is 15.

The square root of 313161 is about 559.6078984432. The cubic root of 313161 is about 67.9082528543.

Adding to 313161 its reverse (161313), we get a palindrome (474474).

It can be divided in two parts, 313 and 161, that added together give a palindrome (474).

The spelling of 313161 in words is "three hundred thirteen thousand, one hundred sixty-one".