161325299 has 2 divisors, whose sum is σ = 161325300. Its totient is φ = 161325298.

The previous prime is 161325253. The next prime is 161325313. The reversal of 161325299 is 992523161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161325299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164325299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80662649 + 80662650.

It is an arithmetic number, because the mean of its divisors is an integer number (80662650).

Almost surely, 2^161325299 is an apocalyptic number.

161325299 is a deficient number, since it is larger than the sum of its proper divisors (1).

161325299 is an equidigital number, since it uses as much as digits as its factorization.

161325299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 161325299 is about 12701.3896483810. The cubic root of 161325299 is about 544.3783265707.

The spelling of 161325299 in words is "one hundred sixty-one million, three hundred twenty-five thousand, two hundred ninety-nine".