312406361 has 4 divisors (see below), whose sum is σ = 313559424. Its totient is φ = 311253300.

The previous prime is 312406307. The next prime is 312406421. The reversal of 312406361 is 163604213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163604213 = 2089 ⋅78317.

It is a cyclic number.

It is not a de Polignac number, because 312406361 - 2²⁶ = 245297497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312406361.

It is not an unprimeable number, because it can be changed into a prime (312403361) 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, 576125 + ... + 576666.

It is an arithmetic number, because the mean of its divisors is an integer number (78389856).

Almost surely, 2^312406361 is an apocalyptic number.

It is an amenable number.

312406361 is a deficient number, since it is larger than the sum of its proper divisors (1153063).

312406361 is a wasteful number, since it uses less digits than its factorization.

312406361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153062.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 312406361 is about 17675.0208203555. The cubic root of 312406361 is about 678.5366172840.

The spelling of 312406361 in words is "three hundred twelve million, four hundred six thousand, three hundred sixty-one".