91253 has 2 divisors, whose sum is σ = 91254. Its totient is φ = 91252.

The previous prime is 91249. The next prime is 91283. The reversal of 91253 is 35219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91204 + 49 = 302^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 91253 - 2² = 91249 is a prime.

It is a super-2 number, since 2×91253² = 16654220018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45626 + 45627.

It is an arithmetic number, because the mean of its divisors is an integer number (45627).

2⁹¹²⁵³ is an apocalyptic number.

It is an amenable number.

91253 is a deficient number, since it is larger than the sum of its proper divisors (1).

91253 is an equidigital number, since it uses as much as digits as its factorization.

91253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 20.

The square root of 91253 is about 302.0811149344. The cubic root of 91253 is about 45.0210601011.

The spelling of 91253 in words is "ninety-one thousand, two hundred fifty-three".