12992291 has 8 divisors (see below), whose sum is σ = 14370384. Its totient is φ = 11668320.

The previous prime is 12992281. The next prime is 12992293. The reversal of 12992291 is 19229921.

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

It is not a de Polignac number, because 12992291 - 2¹⁰ = 12991267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12992293) 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 7 ways as a sum of consecutive naturals, for example, 13025 + ... + 13986.

It is an arithmetic number, because the mean of its divisors is an integer number (1796298).

Almost surely, 2^12992291 is an apocalyptic number.

12992291 is a deficient number, since it is larger than the sum of its proper divisors (1378093).

12992291 is a wasteful number, since it uses less digits than its factorization.

12992291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27061.

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

The square root of 12992291 is about 3604.4820709777. The cubic root of 12992291 is about 235.0869815329.

The spelling of 12992291 in words is "twelve million, nine hundred ninety-two thousand, two hundred ninety-one".