14256981 has 12 divisors (see below), whose sum is σ = 20931820. Its totient is φ = 9348480.

The previous prime is 14256961. The next prime is 14257003. The reversal of 14256981 is 18965241.

14256981 is a `hidden beast` number, since 14 + 2 + 569 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1232100 + 13024881 = 1110^2 + 3609^2 .

It is not a de Polignac number, because 14256981 - 2¹⁵ = 14224213 is a prime.

It is a super-2 number, since 2×14256981² = 406523014468722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14256901) 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 in 11 ways as a sum of consecutive naturals, for example, 12436 + ... + 13533.

Almost surely, 2^14256981 is an apocalyptic number.

It is an amenable number.

14256981 is a deficient number, since it is larger than the sum of its proper divisors (6674839).

14256981 is a wasteful number, since it uses less digits than its factorization.

14256981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26036 (or 26033 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 14256981 is about 3775.8417604555. The cubic root of 14256981 is about 242.4799629174.

The spelling of 14256981 in words is "fourteen million, two hundred fifty-six thousand, nine hundred eighty-one".