161167199 has 2 divisors, whose sum is σ = 161167200. Its totient is φ = 161167198.

The previous prime is 161167169. The next prime is 161167241. The reversal of 161167199 is 991761161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161167199 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 (161167129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80583599 + 80583600.

It is an arithmetic number, because the mean of its divisors is an integer number (80583600).

Almost surely, 2^161167199 is an apocalyptic number.

161167199 is a deficient number, since it is larger than the sum of its proper divisors (1).

161167199 is an equidigital number, since it uses as much as digits as its factorization.

161167199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 41.

The square root of 161167199 is about 12695.1643943669. The cubic root of 161167199 is about 544.2004368360.

The spelling of 161167199 in words is "one hundred sixty-one million, one hundred sixty-seven thousand, one hundred ninety-nine".