12291496 has 16 divisors (see below), whose sum is σ = 26339040. Its totient is φ = 5267760.

The previous prime is 12291491. The next prime is 12291497. The reversal of 12291496 is 69419221.

It is not an unprimeable number, because it can be changed into a prime (12291491) 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 3 ways as a sum of consecutive naturals, for example, 109690 + ... + 109801.

It is an arithmetic number, because the mean of its divisors is an integer number (1646190).

Almost surely, 2^12291496 is an apocalyptic number.

It is an amenable number.

12291496 is an abundant number, since it is smaller than the sum of its proper divisors (14047544).

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

12291496 is a wasteful number, since it uses less digits than its factorization.

12291496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219504 (or 219500 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 12291496 is about 3505.9229883156. The cubic root of 12291496 is about 230.7818133082.

The spelling of 12291496 in words is "twelve million, two hundred ninety-one thousand, four hundred ninety-six".