312901 has 4 divisors (see below), whose sum is σ = 315052. Its totient is φ = 310752.

The previous prime is 312899. The next prime is 312929. The reversal of 312901 is 109213.

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 160801 + 152100 = 401^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 312901 - 2¹ = 312899 is a prime.

It is an Ulam 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 (312931) 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, 840 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (78763).

2³¹²⁹⁰¹ is an apocalyptic number.

It is an amenable number.

312901 is a deficient number, since it is larger than the sum of its proper divisors (2151).

312901 is a wasteful number, since it uses less digits than its factorization.

312901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 312901 is about 559.3755446925. The cubic root of 312901 is about 67.8894541806.

The spelling of 312901 in words is "three hundred twelve thousand, nine hundred one".