91414199 has 2 divisors, whose sum is σ = 91414200. Its totient is φ = 91414198.

The previous prime is 91414189. The next prime is 91414223. The reversal of 91414199 is 99141419.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91414199 - 2²⁰ = 90365623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91414109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45707099 + 45707100.

It is an arithmetic number, because the mean of its divisors is an integer number (45707100).

Almost surely, 2^91414199 is an apocalyptic number.

91414199 is a deficient number, since it is larger than the sum of its proper divisors (1).

91414199 is an equidigital number, since it uses as much as digits as its factorization.

91414199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 38.

The square root of 91414199 is about 9561.0772928577. The cubic root of 91414199 is about 450.4755450195.

The spelling of 91414199 in words is "ninety-one million, four hundred fourteen thousand, one hundred ninety-nine".