91333049 has 2 divisors, whose sum is σ = 91333050. Its totient is φ = 91333048.

The previous prime is 91333007. The next prime is 91333063. The reversal of 91333049 is 94033319.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89491600 + 1841449 = 9460^2 + 1357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91333049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91330049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45666524 + 45666525.

It is an arithmetic number, because the mean of its divisors is an integer number (45666525).

Almost surely, 2^91333049 is an apocalyptic number.

It is an amenable number.

91333049 is a deficient number, since it is larger than the sum of its proper divisors (1).

91333049 is an equidigital number, since it uses as much as digits as its factorization.

91333049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 91333049 is about 9556.8325819803. The cubic root of 91333049 is about 450.3422071887.

The spelling of 91333049 in words is "ninety-one million, three hundred thirty-three thousand, forty-nine".