312949223 has 8 divisors (see below), whose sum is σ = 314743968. Its totient is φ = 311159584.

The previous prime is 312949193. The next prime is 312949249. The reversal of 312949223 is 322949213.

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

It is a cyclic number.

It is not a de Polignac number, because 312949223 - 2⁶ = 312949159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312949253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208865 + ... + 210357.

It is an arithmetic number, because the mean of its divisors is an integer number (39342996).

Almost surely, 2^312949223 is an apocalyptic number.

312949223 is a deficient number, since it is larger than the sum of its proper divisors (1794745).

312949223 is a wasteful number, since it uses less digits than its factorization.

312949223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553.

The product of its digits is 23328, while the sum is 35.

The square root of 312949223 is about 17690.3709118831. The cubic root of 312949223 is about 678.9294161487.

The spelling of 312949223 in words is "three hundred twelve million, nine hundred forty-nine thousand, two hundred twenty-three".