161082943 has 12 divisors (see below), whose sum is σ = 187708752. Its totient is φ = 137830560.

The previous prime is 161082937. The next prime is 161082947. The reversal of 161082943 is 349280161.

It is not a de Polignac number, because 161082943 - 2²¹ = 158985791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161082899 and 161082908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161082947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29163 + ... + 34243.

It is an arithmetic number, because the mean of its divisors is an integer number (15642396).

Almost surely, 2^161082943 is an apocalyptic number.

161082943 is a deficient number, since it is larger than the sum of its proper divisors (26625809).

161082943 is an equidigital number, since it uses as much as digits as its factorization.

161082943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742 (or 5735 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 161082943 is about 12691.8455316790. The cubic root of 161082943 is about 544.1055867984.

The spelling of 161082943 in words is "one hundred sixty-one million, eighty-two thousand, nine hundred forty-three".