12691092 has 24 divisors (see below), whose sum is σ = 29920576. Its totient is φ = 4186368.

The previous prime is 12691087. The next prime is 12691093. The reversal of 12691092 is 29019621.

It is a happy number.

It is a super-2 number, since 2×12691092² = 322127632304928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12691093) 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, 4288 + ... + 6615.

Almost surely, 2^12691092 is an apocalyptic number.

12691092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12691092 is an abundant number, since it is smaller than the sum of its proper divisors (17229484).

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

12691092 is a wasteful number, since it uses less digits than its factorization.

12691092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11007 (or 11005 counting only the distinct ones).

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

The square root of 12691092 is about 3562.4558944638. The cubic root of 12691092 is about 233.2560932550.

The spelling of 12691092 in words is "twelve million, six hundred ninety-one thousand, ninety-two".