91252943 has 2 divisors, whose sum is σ = 91252944. Its totient is φ = 91252942.

The previous prime is 91252927. The next prime is 91252969. The reversal of 91252943 is 34925219.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91252943 - 2⁴ = 91252927 is a prime.

It is a super-2 number, since 2×91252943² = 16654199212322498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91252043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45626471 + 45626472.

It is an arithmetic number, because the mean of its divisors is an integer number (45626472).

Almost surely, 2^91252943 is an apocalyptic number.

91252943 is a deficient number, since it is larger than the sum of its proper divisors (1).

91252943 is an equidigital number, since it uses as much as digits as its factorization.

91252943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 91252943 is about 9552.6406296898. The cubic root of 91252943 is about 450.2105072719.

The spelling of 91252943 in words is "ninety-one million, two hundred fifty-two thousand, nine hundred forty-three".