161353222 has 8 divisors (see below), whose sum is σ = 256266936. Its totient is φ = 75930912.

The previous prime is 161353217. The next prime is 161353223. The reversal of 161353222 is 222353161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161353223) 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, 2372808 + ... + 2372875.

It is an arithmetic number, because the mean of its divisors is an integer number (32033367).

Almost surely, 2^161353222 is an apocalyptic number.

161353222 is a deficient number, since it is larger than the sum of its proper divisors (94913714).

161353222 is a wasteful number, since it uses less digits than its factorization.

161353222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745702.

The product of its digits is 2160, while the sum is 25.

The square root of 161353222 is about 12702.4888112527. The cubic root of 161353222 is about 544.4097326783.

The spelling of 161353222 in words is "one hundred sixty-one million, three hundred fifty-three thousand, two hundred twenty-two".