161089922 has 8 divisors (see below), whose sum is σ = 276154176. Its totient is φ = 69038532.

The previous prime is 161089921. The next prime is 161089931. The reversal of 161089922 is 229980161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (161089921) 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, 5753198 + ... + 5753225.

It is an arithmetic number, because the mean of its divisors is an integer number (34519272).

Almost surely, 2^161089922 is an apocalyptic number.

161089922 is a deficient number, since it is larger than the sum of its proper divisors (115064254).

161089922 is a wasteful number, since it uses less digits than its factorization.

161089922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11506432.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 161089922 is about 12692.1204690154. The cubic root of 161089922 is about 544.1134445682.

The spelling of 161089922 in words is "one hundred sixty-one million, eighty-nine thousand, nine hundred twenty-two".