91453 has 2 divisors, whose sum is σ = 91454. Its totient is φ = 91452.

The previous prime is 91433. The next prime is 91457. The reversal of 91453 is 35419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71289 + 20164 = 267^2 + 142^2 .

It is an emirp because it is prime and its reverse (35419) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91453 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45726 + 45727.

It is an arithmetic number, because the mean of its divisors is an integer number (45727).

2⁹¹⁴⁵³ is an apocalyptic number.

It is an amenable number.

91453 is a deficient number, since it is larger than the sum of its proper divisors (1).

91453 is an equidigital number, since it uses as much as digits as its factorization.

91453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 22.

The square root of 91453 is about 302.4119706625. The cubic root of 91453 is about 45.0539271185.

The spelling of 91453 in words is "ninety-one thousand, four hundred fifty-three".