313951 has 4 divisors (see below), whose sum is σ = 342504. Its totient is φ = 285400.

The previous prime is 313949. The next prime is 313961. The reversal of 313951 is 159313.

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

It is a cyclic number.

It is not a de Polignac number, because 313951 - 2¹ = 313949 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14260 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (85626).

2³¹³⁹⁵¹ is an apocalyptic number.

313951 is the 300-th centered heptagonal number.

313951 is a deficient number, since it is larger than the sum of its proper divisors (28553).

313951 is a wasteful number, since it uses less digits than its factorization.

313951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28552.

The product of its digits is 405, while the sum is 22.

The square root of 313951 is about 560.3133052141. The cubic root of 313951 is about 67.9653081403.

The spelling of 313951 in words is "three hundred thirteen thousand, nine hundred fifty-one".