12131292 has 24 divisors (see below), whose sum is σ = 29220352. Its totient is φ = 3913200.

The previous prime is 12131269. The next prime is 12131293. The reversal of 12131292 is 29213121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15934 + ... + 16677.

Almost surely, 2^12131292 is an apocalyptic number.

12131292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12131292 is an abundant number, since it is smaller than the sum of its proper divisors (17089060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12131292 is a wasteful number, since it uses less digits than its factorization.

12131292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32649 (or 32647 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

The square root of 12131292 is about 3483.0004306632. Note that the first 3 decimals coincide. The cubic root of 12131292 is about 229.7747763749.

It can be divided in two parts, 121 and 31292, that added together give a palindrome (31413).

The spelling of 12131292 in words is "twelve million, one hundred thirty-one thousand, two hundred ninety-two".