90014681 has 2 divisors, whose sum is σ = 90014682. Its totient is φ = 90014680.

The previous prime is 90014651. The next prime is 90014693. The reversal of 90014681 is 18641009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86192656 + 3822025 = 9284^2 + 1955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90014681 is a prime.

It is a super-2 number, since 2×90014681² = 16205285591063522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (90014611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45007340 + 45007341.

It is an arithmetic number, because the mean of its divisors is an integer number (45007341).

Almost surely, 2^90014681 is an apocalyptic number.

It is an amenable number.

90014681 is a deficient number, since it is larger than the sum of its proper divisors (1).

90014681 is an equidigital number, since it uses as much as digits as its factorization.

90014681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 90014681 is about 9487.6067055923. The cubic root of 90014681 is about 448.1648405543.

The spelling of 90014681 in words is "ninety million, fourteen thousand, six hundred eighty-one".