91195523 has 2 divisors, whose sum is σ = 91195524. Its totient is φ = 91195522.

The previous prime is 91195499. The next prime is 91195547. The reversal of 91195523 is 32559119.

It is a balanced prime because it is at equal distance from previous prime (91195499) and next prime (91195547).

It is a cyclic number.

It is not a de Polignac number, because 91195523 - 2²² = 87001219 is a prime.

It is not a weakly prime, because it can be changed into another prime (91192523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45597761 + 45597762.

It is an arithmetic number, because the mean of its divisors is an integer number (45597762).

Almost surely, 2^91195523 is an apocalyptic number.

91195523 is a deficient number, since it is larger than the sum of its proper divisors (1).

91195523 is an equidigital number, since it uses as much as digits as its factorization.

91195523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12150, while the sum is 35.

The square root of 91195523 is about 9549.6347050555. The cubic root of 91195523 is about 450.1160573084.

The spelling of 91195523 in words is "ninety-one million, one hundred ninety-five thousand, five hundred twenty-three".