109161599 has 2 divisors, whose sum is σ = 109161600. Its totient is φ = 109161598.

The previous prime is 109161587. The next prime is 109161601. The reversal of 109161599 is 995161901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109161599 - 2⁸ = 109161343 is a prime.

Together with 109161601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109161529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54580799 + 54580800.

It is an arithmetic number, because the mean of its divisors is an integer number (54580800).

Almost surely, 2^109161599 is an apocalyptic number.

109161599 is a deficient number, since it is larger than the sum of its proper divisors (1).

109161599 is an equidigital number, since it uses as much as digits as its factorization.

109161599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 41.

The square root of 109161599 is about 10448.0428310761. The cubic root of 109161599 is about 477.9215673438.

The spelling of 109161599 in words is "one hundred nine million, one hundred sixty-one thousand, five hundred ninety-nine".