161082923 has 2 divisors, whose sum is σ = 161082924. Its totient is φ = 161082922.

The previous prime is 161082917. The next prime is 161082937. The reversal of 161082923 is 329280161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161082923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161082923.

It is not a weakly prime, because it can be changed into another prime (161012923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80541461 + 80541462.

It is an arithmetic number, because the mean of its divisors is an integer number (80541462).

Almost surely, 2^161082923 is an apocalyptic number.

161082923 is a deficient number, since it is larger than the sum of its proper divisors (1).

161082923 is an equidigital number, since it uses as much as digits as its factorization.

161082923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 161082923 is about 12691.8447437715. The cubic root of 161082923 is about 544.1055642798.

The spelling of 161082923 in words is "one hundred sixty-one million, eighty-two thousand, nine hundred twenty-three".