90112313 has 2 divisors, whose sum is σ = 90112314. Its totient is φ = 90112312.

The previous prime is 90112303. The next prime is 90112327. The reversal of 90112313 is 31321109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67947049 + 22165264 = 8243^2 + 4708^2 .

It is an emirp because it is prime and its reverse (31321109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90112313 - 2⁶ = 90112249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90112303) 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, 45056156 + 45056157.

It is an arithmetic number, because the mean of its divisors is an integer number (45056157).

Almost surely, 2^90112313 is an apocalyptic number.

It is an amenable number.

90112313 is a deficient number, since it is larger than the sum of its proper divisors (1).

90112313 is an equidigital number, since it uses as much as digits as its factorization.

90112313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 90112313 is about 9492.7505497616. The cubic root of 90112313 is about 448.3268119847.

The spelling of 90112313 in words is "ninety million, one hundred twelve thousand, three hundred thirteen".