90965159 has 2 divisors, whose sum is σ = 90965160. Its totient is φ = 90965158.

The previous prime is 90965153. The next prime is 90965201. The reversal of 90965159 is 95156909.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90965159 - 2⁸ = 90964903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90965153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45482579 + 45482580.

It is an arithmetic number, because the mean of its divisors is an integer number (45482580).

Almost surely, 2^90965159 is an apocalyptic number.

90965159 is a deficient number, since it is larger than the sum of its proper divisors (1).

90965159 is an equidigital number, since it uses as much as digits as its factorization.

90965159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109350, while the sum is 44.

The square root of 90965159 is about 9537.5656747411. The cubic root of 90965159 is about 449.7367332520.

Subtracting from 90965159 its product of nonzero digits (109350), we obtain a palindrome (90855809).

The spelling of 90965159 in words is "ninety million, nine hundred sixty-five thousand, one hundred fifty-nine".