14810981 has 2 divisors, whose sum is σ = 14810982. Its totient is φ = 14810980.

The previous prime is 14810977. The next prime is 14810987. The reversal of 14810981 is 18901841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14508481 + 302500 = 3809^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 14810981 - 2² = 14810977 is a prime.

It is a super-2 number, since 2×14810981² = 438730316364722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14810987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7405490 + 7405491.

It is an arithmetic number, because the mean of its divisors is an integer number (7405491).

Almost surely, 2^14810981 is an apocalyptic number.

It is an amenable number.

14810981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14810981 is an equidigital number, since it uses as much as digits as its factorization.

14810981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 14810981 is about 3848.5037352197. The cubic root of 14810981 is about 245.5809122398.

The spelling of 14810981 in words is "fourteen million, eight hundred ten thousand, nine hundred eighty-one".