12942291 has 8 divisors (see below), whose sum is σ = 17450640. Its totient is φ = 8531072.

The previous prime is 12942233. The next prime is 12942301. The reversal of 12942291 is 19224921.

It is a happy number.

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 12942291 - 2¹¹ = 12940243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12942691) 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, 23970 + ... + 24503.

It is an arithmetic number, because the mean of its divisors is an integer number (2181330).

Almost surely, 2^12942291 is an apocalyptic number.

12942291 is a deficient number, since it is larger than the sum of its proper divisors (4508349).

12942291 is an equidigital number, since it uses as much as digits as its factorization.

12942291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48565.

The product of its digits is 2592, while the sum is 30.

The square root of 12942291 is about 3597.5395758768. The cubic root of 12942291 is about 234.7850214445.

The spelling of 12942291 in words is "twelve million, nine hundred forty-two thousand, two hundred ninety-one".