109051091 has 2 divisors, whose sum is σ = 109051092. Its totient is φ = 109051090.

The previous prime is 109051067. The next prime is 109051097. The reversal of 109051091 is 190150901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109051091 - 2²⁶ = 41942227 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109051091.

It is not a weakly prime, because it can be changed into another prime (109051097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54525545 + 54525546.

It is an arithmetic number, because the mean of its divisors is an integer number (54525546).

Almost surely, 2^109051091 is an apocalyptic number.

109051091 is a deficient number, since it is larger than the sum of its proper divisors (1).

109051091 is an equidigital number, since it uses as much as digits as its factorization.

109051091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 109051091 is about 10442.7530373939. The cubic root of 109051091 is about 477.7602408061.

The spelling of 109051091 in words is "one hundred nine million, fifty-one thousand, ninety-one".