312630067 has 4 divisors (see below), whose sum is σ = 312898216. Its totient is φ = 312361920.

The previous prime is 312630061. The next prime is 312630079. The reversal of 312630067 is 760036213.

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 312630067 - 2²³ = 304241459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312630061) 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, 132318 + ... + 134659.

It is an arithmetic number, because the mean of its divisors is an integer number (78224554).

Almost surely, 2^312630067 is an apocalyptic number.

312630067 is a deficient number, since it is larger than the sum of its proper divisors (268149).

312630067 is a wasteful number, since it uses less digits than its factorization.

312630067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268148.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 312630067 is about 17681.3479972541. The cubic root of 312630067 is about 678.6985393981.

The spelling of 312630067 in words is "three hundred twelve million, six hundred thirty thousand, sixty-seven".