161142323 has 2 divisors, whose sum is σ = 161142324. Its totient is φ = 161142322.

The previous prime is 161142263. The next prime is 161142349. The reversal of 161142323 is 323241161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161142323 - 2¹⁸ = 160880179 is a prime.

It is not a weakly prime, because it can be changed into another prime (161142353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80571161 + 80571162.

It is an arithmetic number, because the mean of its divisors is an integer number (80571162).

Almost surely, 2^161142323 is an apocalyptic number.

161142323 is a deficient number, since it is larger than the sum of its proper divisors (1).

161142323 is an equidigital number, since it uses as much as digits as its factorization.

161142323 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 161142323 is about 12694.1846134362. The cubic root of 161142323 is about 544.1724364597.

Adding to 161142323 its reverse (323241161), we get a palindrome (484383484).

It can be divided in two parts, 1611 and 42323, that added together give a palindrome (43934).

The spelling of 161142323 in words is "one hundred sixty-one million, one hundred forty-two thousand, three hundred twenty-three".