14859981 has 12 divisors (see below), whose sum is σ = 21870108. Its totient is φ = 9719424.

The previous prime is 14859961. The next prime is 14860003. The reversal of 14859981 is 18995841.

14859981 is a `hidden beast` number, since 1 + 485 + 99 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7209225 + 7650756 = 2685^2 + 2766^2 .

It is not a de Polignac number, because 14859981 - 2⁹ = 14859469 is a prime.

It is a super-2 number, since 2×14859981² = 441638070640722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14859961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15100 + ... + 16053.

It is an arithmetic number, because the mean of its divisors is an integer number (1822509).

Almost surely, 2^14859981 is an apocalyptic number.

It is an amenable number.

14859981 is a deficient number, since it is larger than the sum of its proper divisors (7010127).

14859981 is a wasteful number, since it uses less digits than its factorization.

14859981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31212 (or 31209 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 14859981 is about 3854.8645890615. The cubic root of 14859981 is about 245.8514371678.

The spelling of 14859981 in words is "fourteen million, eight hundred fifty-nine thousand, nine hundred eighty-one".