13985522 has 8 divisors (see below), whose sum is σ = 20998956. Its totient is φ = 6985872.

The previous prime is 13985459. The next prime is 13985533. The reversal of 13985522 is 22558931.

It can be written as a sum of positive squares in 2 ways, for example, as 12880921 + 1104601 = 3589^2 + 1051^2 .

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

It is a super-2 number, since 2×13985522² = 391189651224968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353 + ... + 5300.

Almost surely, 2^13985522 is an apocalyptic number.

13985522 is a deficient number, since it is larger than the sum of its proper divisors (7013434).

13985522 is a wasteful number, since it uses less digits than its factorization.

13985522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892.

The product of its digits is 21600, while the sum is 35.

The square root of 13985522 is about 3739.7221821948. The cubic root of 13985522 is about 240.9311167149.

The spelling of 13985522 in words is "thirteen million, nine hundred eighty-five thousand, five hundred twenty-two".