12131499 has 16 divisors (see below), whose sum is σ = 16708608. Its totient is φ = 7825152.

The previous prime is 12131473. The next prime is 12131507. The reversal of 12131499 is 99413121.

It is not a de Polignac number, because 12131499 - 2¹² = 12127403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13234 + ... + 14120.

It is an arithmetic number, because the mean of its divisors is an integer number (1044288).

Almost surely, 2^12131499 is an apocalyptic number.

12131499 is a deficient number, since it is larger than the sum of its proper divisors (4577109).

12131499 is an equidigital number, since it uses as much as digits as its factorization.

12131499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its digits is 1944, while the sum is 30.

The square root of 12131499 is about 3483.0301462950. The cubic root of 12131499 is about 229.7760832736.

The spelling of 12131499 in words is "twelve million, one hundred thirty-one thousand, four hundred ninety-nine".