91965241 has 2 divisors, whose sum is σ = 91965242. Its totient is φ = 91965240.

The previous prime is 91965221. The next prime is 91965271. The reversal of 91965241 is 14256919.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60840000 + 31125241 = 7800^2 + 5579^2 .

It is a cyclic number.

It is not a de Polignac number, because 91965241 - 2⁷ = 91965113 is a prime.

It is a super-3 number, since 3×91965241³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91965241.

It is not a weakly prime, because it can be changed into another prime (91965221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45982620 + 45982621.

It is an arithmetic number, because the mean of its divisors is an integer number (45982621).

Almost surely, 2^91965241 is an apocalyptic number.

It is an amenable number.

91965241 is a deficient number, since it is larger than the sum of its proper divisors (1).

91965241 is an equidigital number, since it uses as much as digits as its factorization.

91965241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 37.

The square root of 91965241 is about 9589.8509373191. The cubic root of 91965241 is about 451.3788832880.

The spelling of 91965241 in words is "ninety-one million, nine hundred sixty-five thousand, two hundred forty-one".