312099136 has 28 divisors (see below), whose sum is σ = 619940340. Its totient is φ = 155893760.

The previous prime is 312099101. The next prime is 312099143. The reversal of 312099136 is 631990213.

It can be written as a sum of positive squares in 2 ways, for example, as 25000000 + 287099136 = 5000^2 + 16944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88446 + ... + 91906.

Almost surely, 2^312099136 is an apocalyptic number.

It is an amenable number.

312099136 is a deficient number, since it is larger than the sum of its proper divisors (307841204).

312099136 is a wasteful number, since it uses less digits than its factorization.

312099136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4882 (or 4872 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 312099136 is about 17666.3277451767. The cubic root of 312099136 is about 678.3141167089.

The spelling of 312099136 in words is "three hundred twelve million, ninety-nine thousand, one hundred thirty-six".