14990581 has 2 divisors, whose sum is σ = 14990582. Its totient is φ = 14990580.

The previous prime is 14990579. The next prime is 14990609. The reversal of 14990581 is 18509941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 2775556 = 3495^2 + 1666^2 .

It is an emirp because it is prime and its reverse (18509941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14990581 - 2¹ = 14990579 is a prime.

It is a super-2 number, since 2×14990581² = 449435037435122, which contains 22 as substring.

Together with 14990579, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 14990581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14990681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7495290 + 7495291.

It is an arithmetic number, because the mean of its divisors is an integer number (7495291).

Almost surely, 2^14990581 is an apocalyptic number.

It is an amenable number.

14990581 is a deficient number, since it is larger than the sum of its proper divisors (1).

14990581 is an equidigital number, since it uses as much as digits as its factorization.

14990581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 14990581 is about 3871.7671675864. The cubic root of 14990581 is about 246.5695760656.

The spelling of 14990581 in words is "fourteen million, nine hundred ninety thousand, five hundred eighty-one".