161023244 has 12 divisors (see below), whose sum is σ = 285996984. Its totient is φ = 79309824.

The previous prime is 161023231. The next prime is 161023249. The reversal of 161023244 is 442320161.

It is not an unprimeable number, because it can be changed into a prime (161023249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300149 + ... + 300684.

It is an arithmetic number, because the mean of its divisors is an integer number (23833082).

Almost surely, 2^161023244 is an apocalyptic number.

It is an amenable number.

161023244 is a deficient number, since it is larger than the sum of its proper divisors (124973740).

161023244 is a wasteful number, since it uses less digits than its factorization.

161023244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600904 (or 600902 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 161023244 is about 12689.4934493068. The cubic root of 161023244 is about 544.0383614456.

The spelling of 161023244 in words is "one hundred sixty-one million, twenty-three thousand, two hundred forty-four".