312400913 has 8 divisors (see below), whose sum is σ = 340931136. Its totient is φ = 283892400.

The previous prime is 312400909. The next prime is 312400951. The reversal of 312400913 is 319004213.

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

It is not a de Polignac number, because 312400913 - 2² = 312400909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312402913) 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, 45443 + ... + 51863.

It is an arithmetic number, because the mean of its divisors is an integer number (42616392).

Almost surely, 2^312400913 is an apocalyptic number.

It is an amenable number.

312400913 is a deficient number, since it is larger than the sum of its proper divisors (28530223).

312400913 is a wasteful number, since it uses less digits than its factorization.

312400913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 312400913 is about 17674.8667038821. The cubic root of 312400913 is about 678.5326729672.

It can be divided in two parts, 312400 and 913, that added together give a palindrome (313313).

The spelling of 312400913 in words is "three hundred twelve million, four hundred thousand, nine hundred thirteen".