312534397 has 8 divisors (see below), whose sum is σ = 364472000. Its totient is φ = 267886332.

The previous prime is 312534379. The next prime is 312534413. The reversal of 312534397 is 793435213.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-312534397 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 (312534337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455247 + ... + 455932.

It is an arithmetic number, because the mean of its divisors is an integer number (45559000).

Almost surely, 2^312534397 is an apocalyptic number.

It is an amenable number.

312534397 is a deficient number, since it is larger than the sum of its proper divisors (51937603).

312534397 is an frugal number, since it uses more digits than its factorization.

312534397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911200 (or 911186 counting only the distinct ones).

The product of its digits is 68040, while the sum is 37.

The square root of 312534397 is about 17678.6423969716. The cubic root of 312534397 is about 678.6293013213.

The spelling of 312534397 in words is "three hundred twelve million, five hundred thirty-four thousand, three hundred ninety-seven".