312242158 has 8 divisors (see below), whose sum is σ = 488726928. Its totient is φ = 149333184.

The previous prime is 312242153. The next prime is 312242173. The reversal of 312242158 is 851242213.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312242153) 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, 3393891 + ... + 3393982.

It is an arithmetic number, because the mean of its divisors is an integer number (61090866).

Almost surely, 2^312242158 is an apocalyptic number.

312242158 is a deficient number, since it is larger than the sum of its proper divisors (176484770).

312242158 is a wasteful number, since it uses less digits than its factorization.

312242158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787898.

The product of its digits is 3840, while the sum is 28.

The square root of 312242158 is about 17670.3751516486. The cubic root of 312242158 is about 678.4177152294.

The spelling of 312242158 in words is "three hundred twelve million, two hundred forty-two thousand, one hundred fifty-eight".