13121292 has 12 divisors (see below), whose sum is σ = 30616376. Its totient is φ = 4373760.

The previous prime is 13121291. The next prime is 13121309. The reversal of 13121292 is 29212131.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13121291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546709 + ... + 546732.

Almost surely, 2^13121292 is an apocalyptic number.

13121292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13121292 is an abundant number, since it is smaller than the sum of its proper divisors (17495084).

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

13121292 is a wasteful number, since it uses less digits than its factorization.

13121292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093448 (or 1093446 counting only the distinct ones).

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

The square root of 13121292 is about 3622.3323977791. The cubic root of 13121292 is about 235.8624833245.

It can be divided in two parts, 1312129 and 2, that added together give a palindrome (1312131).

The spelling of 13121292 in words is "thirteen million, one hundred twenty-one thousand, two hundred ninety-two".