91336253 has 2 divisors, whose sum is σ = 91336254. Its totient is φ = 91336252.

The previous prime is 91336237. The next prime is 91336277. The reversal of 91336253 is 35263319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91336249 + 4 = 9557^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 91336253 - 2⁴ = 91336237 is a prime.

It is a super-2 number, since 2×91336253² = 16684622224160018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91336153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45668126 + 45668127.

It is an arithmetic number, because the mean of its divisors is an integer number (45668127).

Almost surely, 2^91336253 is an apocalyptic number.

It is an amenable number.

91336253 is a deficient number, since it is larger than the sum of its proper divisors (1).

91336253 is an equidigital number, since it uses as much as digits as its factorization.

91336253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 32.

The square root of 91336253 is about 9557.0002092707. Note that the first 3 decimals coincide. The cubic root of 91336253 is about 450.3474731889.

The spelling of 91336253 in words is "ninety-one million, three hundred thirty-six thousand, two hundred fifty-three".