90975259 has 2 divisors, whose sum is σ = 90975260. Its totient is φ = 90975258.

The previous prime is 90975257. The next prime is 90975293. The reversal of 90975259 is 95257909.

It is a weak prime.

It is an emirp because it is prime and its reverse (95257909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90975259 - 2¹ = 90975257 is a prime.

Together with 90975257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (90975251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45487629 + 45487630.

It is an arithmetic number, because the mean of its divisors is an integer number (45487630).

Almost surely, 2^90975259 is an apocalyptic number.

90975259 is a deficient number, since it is larger than the sum of its proper divisors (1).

90975259 is an equidigital number, since it uses as much as digits as its factorization.

90975259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255150, while the sum is 46.

The square root of 90975259 is about 9538.0951452583. The cubic root of 90975259 is about 449.7533776206.

The spelling of 90975259 in words is "ninety million, nine hundred seventy-five thousand, two hundred fifty-nine".