12131492 has 12 divisors (see below), whose sum is σ = 21308700. Its totient is φ = 6043296.

The previous prime is 12131473. The next prime is 12131507. The reversal of 12131492 is 29413121.

It can be written as a sum of positive squares in 2 ways, for example, as 1267876 + 10863616 = 1126^2 + 3296^2 .

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, 4367 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (1775725).

Almost surely, 2^12131492 is an apocalyptic number.

It is an amenable number.

12131492 is a deficient number, since it is larger than the sum of its proper divisors (9177208).

12131492 is a wasteful number, since it uses less digits than its factorization.

12131492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11230 (or 11228 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 12131492 is about 3483.0291414227. The cubic root of 12131492 is about 229.7760390792.

It can be divided in two parts, 121 and 31492, that added together give a palindrome (31613).

The spelling of 12131492 in words is "twelve million, one hundred thirty-one thousand, four hundred ninety-two".