12902591 has 8 divisors (see below), whose sum is σ = 13982640. Its totient is φ = 11835072.

The previous prime is 12902579. The next prime is 12902611. The reversal of 12902591 is 19520921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12902591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12902891) 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, 926 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (1747830).

Almost surely, 2^12902591 is an apocalyptic number.

12902591 is a deficient number, since it is larger than the sum of its proper divisors (1080049).

12902591 is a wasteful number, since it uses less digits than its factorization.

12902591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 12902591 is about 3592.0176781302. The cubic root of 12902591 is about 234.5447107659.

The spelling of 12902591 in words is "twelve million, nine hundred two thousand, five hundred ninety-one".