14593981 has 2 divisors, whose sum is σ = 14593982. Its totient is φ = 14593980.

The previous prime is 14593949. The next prime is 14593987. The reversal of 14593981 is 18939541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7650756 + 6943225 = 2766^2 + 2635^2 .

It is a cyclic number.

It is not a de Polignac number, because 14593981 - 2⁵ = 14593949 is a prime.

It is a super-2 number, since 2×14593981² = 425968562856722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14593987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7296990 + 7296991.

It is an arithmetic number, because the mean of its divisors is an integer number (7296991).

Almost surely, 2^14593981 is an apocalyptic number.

It is an amenable number.

14593981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14593981 is an equidigital number, since it uses as much as digits as its factorization.

14593981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 40.

The square root of 14593981 is about 3820.2069315680. The cubic root of 14593981 is about 244.3756475281.

The spelling of 14593981 in words is "fourteen million, five hundred ninety-three thousand, nine hundred eighty-one".