312955393 has 4 divisors (see below), whose sum is σ = 313504048. Its totient is φ = 312406740.

The previous prime is 312955369. The next prime is 312955399. The reversal of 312955393 is 393559213.

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: 393559213 = 149 ⋅2641337.

It is a cyclic number.

It is not a de Polignac number, because 312955393 - 2⁹ = 312954881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312955399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273471 + ... + 274612.

It is an arithmetic number, because the mean of its divisors is an integer number (78376012).

Almost surely, 2^312955393 is an apocalyptic number.

It is an amenable number.

312955393 is a deficient number, since it is larger than the sum of its proper divisors (548655).

312955393 is an equidigital number, since it uses as much as digits as its factorization.

312955393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548654.

The product of its digits is 109350, while the sum is 40.

The square root of 312955393 is about 17690.5452996791. The cubic root of 312955393 is about 678.9338779662.

The spelling of 312955393 in words is "three hundred twelve million, nine hundred fifty-five thousand, three hundred ninety-three".