161043922 has 32 divisors (see below), whose sum is σ = 266212800. Its totient is φ = 72612288.

The previous prime is 161043919. The next prime is 161043923. The reversal of 161043922 is 229340161.

161043922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161043923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424729 + ... + 425107.

It is an arithmetic number, because the mean of its divisors is an integer number (8319150).

Almost surely, 2^161043922 is an apocalyptic number.

161043922 is a deficient number, since it is larger than the sum of its proper divisors (105168878).

161043922 is a wasteful number, since it uses less digits than its factorization.

161043922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 161043922 is about 12690.3081916871. The cubic root of 161043922 is about 544.0616482363.

The spelling of 161043922 in words is "one hundred sixty-one million, forty-three thousand, nine hundred twenty-two".