12831370 has 8 divisors (see below), whose sum is σ = 23096484. Its totient is φ = 5132544.

The previous prime is 12831361. The next prime is 12831383. The reversal of 12831370 is 7313821.

It can be written as a sum of positive squares in 2 ways, for example, as 12482089 + 349281 = 3533^2 + 591^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641559 + ... + 641578.

Almost surely, 2^12831370 is an apocalyptic number.

12831370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12831370 is a deficient number, since it is larger than the sum of its proper divisors (10265114).

12831370 is a wasteful number, since it uses less digits than its factorization.

12831370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283144.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12831370 is about 3582.0901719527. The cubic root of 12831370 is about 234.1123598997.

The spelling of 12831370 in words is "twelve million, eight hundred thirty-one thousand, three hundred seventy".