14725981 has 4 divisors (see below), whose sum is σ = 14741532. Its totient is φ = 14710432.

The previous prime is 14725951. The next prime is 14726017. The reversal of 14725981 is 18952741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1102500 + 13623481 = 1050^2 + 3691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14725981 is a prime.

It is a super-2 number, since 2×14725981² = 433709032824722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14725981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14725951) 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 3 ways as a sum of consecutive naturals, for example, 6256 + ... + 8281.

It is an arithmetic number, because the mean of its divisors is an integer number (3685383).

Almost surely, 2^14725981 is an apocalyptic number.

It is an amenable number.

14725981 is a deficient number, since it is larger than the sum of its proper divisors (15551).

14725981 is a wasteful number, since it uses less digits than its factorization.

14725981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15550.

The product of its digits is 20160, while the sum is 37.

The square root of 14725981 is about 3837.4445924339. Note that the first 3 decimals coincide. The cubic root of 14725981 is about 245.1102155783.

The spelling of 14725981 in words is "fourteen million, seven hundred twenty-five thousand, nine hundred eighty-one".