91245083 has 2 divisors, whose sum is σ = 91245084. Its totient is φ = 91245082.

The previous prime is 91245061. The next prime is 91245113. The reversal of 91245083 is 38054219.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91245083 - 2⁸ = 91244827 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91245013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45622541 + 45622542.

It is an arithmetic number, because the mean of its divisors is an integer number (45622542).

Almost surely, 2^91245083 is an apocalyptic number.

91245083 is a deficient number, since it is larger than the sum of its proper divisors (1).

91245083 is an equidigital number, since it uses as much as digits as its factorization.

91245083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 91245083 is about 9552.2292162615. The cubic root of 91245083 is about 450.1975807256.

The spelling of 91245083 in words is "ninety-one million, two hundred forty-five thousand, eighty-three".