312839121 has 16 divisors (see below), whose sum is σ = 478614528. Its totient is φ = 178050000.

The previous prime is 312839053. The next prime is 312839129. The reversal of 312839121 is 121938213.

It is not a de Polignac number, because 312839121 - 2¹³ = 312830929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312839129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24405 + ... + 34946.

It is an arithmetic number, because the mean of its divisors is an integer number (29913408).

Almost surely, 2^312839121 is an apocalyptic number.

It is an amenable number.

312839121 is a deficient number, since it is larger than the sum of its proper divisors (165775407).

312839121 is a wasteful number, since it uses less digits than its factorization.

312839121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59612.

The product of its digits is 2592, while the sum is 30.

The square root of 312839121 is about 17687.2587192024. The cubic root of 312839121 is about 678.8497863460.

It can be divided in two parts, 31283 and 9121, that added together give a palindrome (40404).

The spelling of 312839121 in words is "three hundred twelve million, eight hundred thirty-nine thousand, one hundred twenty-one".