14907981 has 16 divisors (see below), whose sum is σ = 21777408. Its totient is φ = 8996400.

The previous prime is 14907967. The next prime is 14907983. The reversal of 14907981 is 18970941.

14907981 = 338² + 339² + ... + 436².

It is a happy number.

It is not a de Polignac number, because 14907981 - 2¹⁸ = 14645837 is a prime.

It is a super-2 number, since 2×14907981² = 444495794992722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14907983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8110 + ... + 9776.

It is an arithmetic number, because the mean of its divisors is an integer number (1361088).

Almost surely, 2^14907981 is an apocalyptic number.

14907981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14907981 is a deficient number, since it is larger than the sum of its proper divisors (6869427).

14907981 is a wasteful number, since it uses less digits than its factorization.

14907981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 14907981 is about 3861.0854691395. The cubic root of 14907981 is about 246.1158651761.

The spelling of 14907981 in words is "fourteen million, nine hundred seven thousand, nine hundred eighty-one".