161534339 has 2 divisors, whose sum is σ = 161534340. Its totient is φ = 161534338.

The previous prime is 161534309. The next prime is 161534363. The reversal of 161534339 is 933435161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161534339 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 161534299 and 161534308.

It is not a weakly prime, because it can be changed into another prime (161534309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80767169 + 80767170.

It is an arithmetic number, because the mean of its divisors is an integer number (80767170).

Almost surely, 2^161534339 is an apocalyptic number.

161534339 is a deficient number, since it is larger than the sum of its proper divisors (1).

161534339 is an equidigital number, since it uses as much as digits as its factorization.

161534339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 35.

The square root of 161534339 is about 12709.6160052143. The cubic root of 161534339 is about 544.6133542447.

The spelling of 161534339 in words is "one hundred sixty-one million, five hundred thirty-four thousand, three hundred thirty-nine".