313231849 has 4 divisors (see below), whose sum is σ = 357979264. Its totient is φ = 268484436.

The previous prime is 313231837. The next prime is 313231937. The reversal of 313231849 is 948132313.

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.

It is a cyclic number.

It is not a de Polignac number, because 313231849 - 2⁹ = 313231337 is a prime.

It is a super-2 number, since 2×313231849² = 196228382455917602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313231949) 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, 22373697 + ... + 22373710.

It is an arithmetic number, because the mean of its divisors is an integer number (89494816).

Almost surely, 2^313231849 is an apocalyptic number.

It is an amenable number.

313231849 is a deficient number, since it is larger than the sum of its proper divisors (44747415).

313231849 is an equidigital number, since it uses as much as digits as its factorization.

313231849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44747414.

The product of its digits is 15552, while the sum is 34.

The square root of 313231849 is about 17698.3572401508. The cubic root of 313231849 is about 679.1337361646.

The spelling of 313231849 in words is "three hundred thirteen million, two hundred thirty-one thousand, eight hundred forty-nine".