91426163 has 2 divisors, whose sum is σ = 91426164. Its totient is φ = 91426162.

The previous prime is 91426141. The next prime is 91426169. The reversal of 91426163 is 36162419.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91426163 is a prime.

It is not a weakly prime, because it can be changed into another prime (91426169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45713081 + 45713082.

It is an arithmetic number, because the mean of its divisors is an integer number (45713082).

Almost surely, 2^91426163 is an apocalyptic number.

91426163 is a deficient number, since it is larger than the sum of its proper divisors (1).

91426163 is an equidigital number, since it uses as much as digits as its factorization.

91426163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 91426163 is about 9561.7029341012. The cubic root of 91426163 is about 450.4951964317.

The spelling of 91426163 in words is "ninety-one million, four hundred twenty-six thousand, one hundred sixty-three".