91158283 has 2 divisors, whose sum is σ = 91158284. Its totient is φ = 91158282.

The previous prime is 91158253. The next prime is 91158307. The reversal of 91158283 is 38285119.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91158283 - 2²⁵ = 57603851 is a prime.

It is not a weakly prime, because it can be changed into another prime (91158203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45579141 + 45579142.

It is an arithmetic number, because the mean of its divisors is an integer number (45579142).

Almost surely, 2^91158283 is an apocalyptic number.

91158283 is a deficient number, since it is larger than the sum of its proper divisors (1).

91158283 is an equidigital number, since it uses as much as digits as its factorization.

91158283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 37.

The square root of 91158283 is about 9547.6846931599. The cubic root of 91158283 is about 450.0547801624.

The spelling of 91158283 in words is "ninety-one million, one hundred fifty-eight thousand, two hundred eighty-three".