13997522 has 24 divisors (see below), whose sum is σ = 26378688. Its totient is φ = 5452920.

The previous prime is 13997519. The next prime is 13997537. The reversal of 13997522 is 22579931.

It is a Cunningham number, because it is equal to 241³+1.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2438 + ... + 5825.

It is an arithmetic number, because the mean of its divisors is an integer number (1099112).

Almost surely, 2^13997522 is an apocalyptic number.

13997522 is a deficient number, since it is larger than the sum of its proper divisors (12381166).

13997522 is a wasteful number, since it uses less digits than its factorization.

13997522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8294 (or 8283 counting only the distinct ones).

The product of its digits is 34020, while the sum is 38.

The square root of 13997522 is about 3741.3262354411. The cubic root of 13997522 is about 241.0000057391. Note that the first 5 decimals are identical.

The spelling of 13997522 in words is "thirteen million, nine hundred ninety-seven thousand, five hundred twenty-two".