91129067 has 2 divisors, whose sum is σ = 91129068. Its totient is φ = 91129066.

The previous prime is 91129033. The next prime is 91129081. The reversal of 91129067 is 76092119.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91129067 - 2⁸ = 91128811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91129667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45564533 + 45564534.

It is an arithmetic number, because the mean of its divisors is an integer number (45564534).

Almost surely, 2^91129067 is an apocalyptic number.

91129067 is a deficient number, since it is larger than the sum of its proper divisors (1).

91129067 is an equidigital number, since it uses as much as digits as its factorization.

91129067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 91129067 is about 9546.1545661067. The cubic root of 91129067 is about 450.0066945506.

The spelling of 91129067 in words is "ninety-one million, one hundred twenty-nine thousand, sixty-seven".