161022343 has 2 divisors, whose sum is σ = 161022344. Its totient is φ = 161022342.

The previous prime is 161022313. The next prime is 161022347. The reversal of 161022343 is 343220161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161022343 - 2⁹ = 161021831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161022347) 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, 80511171 + 80511172.

It is an arithmetic number, because the mean of its divisors is an integer number (80511172).

Almost surely, 2^161022343 is an apocalyptic number.

161022343 is a deficient number, since it is larger than the sum of its proper divisors (1).

161022343 is an equidigital number, since it uses as much as digits as its factorization.

161022343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 161022343 is about 12689.4579474460. The cubic root of 161022343 is about 544.0373467277.

The spelling of 161022343 in words is "one hundred sixty-one million, twenty-two thousand, three hundred forty-three".