161422099 has 2 divisors, whose sum is σ = 161422100. Its totient is φ = 161422098.

The previous prime is 161422069. The next prime is 161422103. The reversal of 161422099 is 990224161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161422099 - 2¹³ = 161413907 is a prime.

It is not a weakly prime, because it can be changed into another prime (161422049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80711049 + 80711050.

It is an arithmetic number, because the mean of its divisors is an integer number (80711050).

Almost surely, 2^161422099 is an apocalyptic number.

161422099 is a deficient number, since it is larger than the sum of its proper divisors (1).

161422099 is an equidigital number, since it uses as much as digits as its factorization.

161422099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 161422099 is about 12705.1996835941. The cubic root of 161422099 is about 544.4871858882.

The spelling of 161422099 in words is "one hundred sixty-one million, four hundred twenty-two thousand, ninety-nine".