90045911 has 2 divisors, whose sum is σ = 90045912. Its totient is φ = 90045910.

The previous prime is 90045833. The next prime is 90045919. The reversal of 90045911 is 11954009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90045911 - 2¹⁸ = 89783767 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90045919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45022955 + 45022956.

It is an arithmetic number, because the mean of its divisors is an integer number (45022956).

Almost surely, 2^90045911 is an apocalyptic number.

90045911 is a deficient number, since it is larger than the sum of its proper divisors (1).

90045911 is an equidigital number, since it uses as much as digits as its factorization.

90045911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 90045911 is about 9489.2523941562. The cubic root of 90045911 is about 448.2166638402.

The spelling of 90045911 in words is "ninety million, forty-five thousand, nine hundred eleven".