161042883 has 4 divisors (see below), whose sum is σ = 214723848. Its totient is φ = 107361920.

The previous prime is 161042873. The next prime is 161042897. The reversal of 161042883 is 388240161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161042883 - 2¹⁷ = 160911811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161042873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26840478 + ... + 26840483.

It is an arithmetic number, because the mean of its divisors is an integer number (53680962).

Almost surely, 2^161042883 is an apocalyptic number.

161042883 is a deficient number, since it is larger than the sum of its proper divisors (53680965).

161042883 is an equidigital number, since it uses as much as digits as its factorization.

161042883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53680964.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 161042883 is about 12690.2672548690. The cubic root of 161042883 is about 544.0604782009.

The spelling of 161042883 in words is "one hundred sixty-one million, forty-two thousand, eight hundred eighty-three".