312135107 has 4 divisors (see below), whose sum is σ = 313535040. Its totient is φ = 310735176.

The previous prime is 312135023. The next prime is 312135119. The reversal of 312135107 is 701531213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312135107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312135007) 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, 699632 + ... + 700077.

It is an arithmetic number, because the mean of its divisors is an integer number (78383760).

Almost surely, 2^312135107 is an apocalyptic number.

312135107 is a deficient number, since it is larger than the sum of its proper divisors (1399933).

312135107 is a wasteful number, since it uses less digits than its factorization.

312135107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399932.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 312135107 is about 17667.3457825447. The cubic root of 312135107 is about 678.3401754158.

The spelling of 312135107 in words is "three hundred twelve million, one hundred thirty-five thousand, one hundred seven".