12292991 has 8 divisors (see below), whose sum is σ = 12895680. Its totient is φ = 11704608.

The previous prime is 12292967. The next prime is 12292993. The reversal of 12292991 is 19929221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12292991 - 2⁶ = 12292927 is a prime.

It is a super-2 number, since 2×12292991² = 302235255452162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12292993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1796 + ... + 5273.

It is an arithmetic number, because the mean of its divisors is an integer number (1611960).

Almost surely, 2^12292991 is an apocalyptic number.

12292991 is a deficient number, since it is larger than the sum of its proper divisors (602689).

12292991 is an equidigital number, since it uses as much as digits as its factorization.

12292991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7153.

The product of its digits is 5832, while the sum is 35.

The square root of 12292991 is about 3506.1361924489. The cubic root of 12292991 is about 230.7911695012.

The spelling of 12292991 in words is "twelve million, two hundred ninety-two thousand, nine hundred ninety-one".