13992571 has 2 divisors, whose sum is σ = 13992572. Its totient is φ = 13992570.

The previous prime is 13992557. The next prime is 13992599. The reversal of 13992571 is 17529931.

It is a weak prime.

It is an emirp because it is prime and its reverse (17529931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13992571 - 2⁷ = 13992443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13992571.

It is not a weakly prime, because it can be changed into another prime (13992551) 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 as a sum of consecutive naturals, namely, 6996285 + 6996286.

It is an arithmetic number, because the mean of its divisors is an integer number (6996286).

Almost surely, 2^13992571 is an apocalyptic number.

13992571 is a deficient number, since it is larger than the sum of its proper divisors (1).

13992571 is an equidigital number, since it uses as much as digits as its factorization.

13992571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 37.

The square root of 13992571 is about 3740.6645131581. The cubic root of 13992571 is about 240.9715880488.

The spelling of 13992571 in words is "thirteen million, nine hundred ninety-two thousand, five hundred seventy-one".