161322341 has 2 divisors, whose sum is σ = 161322342. Its totient is φ = 161322340.

The previous prime is 161322323. The next prime is 161322347. The reversal of 161322341 is 143223161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94965025 + 66357316 = 9745^2 + 8146^2 .

It is a cyclic number.

It is not a de Polignac number, because 161322341 - 2¹⁴ = 161305957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161322347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80661170 + 80661171.

It is an arithmetic number, because the mean of its divisors is an integer number (80661171).

Almost surely, 2^161322341 is an apocalyptic number.

It is an amenable number.

161322341 is a deficient number, since it is larger than the sum of its proper divisors (1).

161322341 is an equidigital number, since it uses as much as digits as its factorization.

161322341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 161322341 is about 12701.2732038957. The cubic root of 161322341 is about 544.3749993783.

The spelling of 161322341 in words is "one hundred sixty-one million, three hundred twenty-two thousand, three hundred forty-one".