161102210 has 8 divisors (see below), whose sum is σ = 289983996. Its totient is φ = 64440880.

The previous prime is 161102177. The next prime is 161102213. The reversal of 161102210 is 12201161.

It can be written as a sum of positive squares in 2 ways, for example, as 160250281 + 851929 = 12659^2 + 923^2 .

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 (161102213) 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, 8055101 + ... + 8055120.

Almost surely, 2^161102210 is an apocalyptic number.

161102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161102210 is a deficient number, since it is larger than the sum of its proper divisors (128881786).

161102210 is a wasteful number, since it uses less digits than its factorization.

161102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16110228.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 161102210 is about 12692.6045396522. The cubic root of 161102210 is about 544.1272792761.

Adding to 161102210 its reverse (12201161), we get a palindrome (173303371).

The spelling of 161102210 in words is "one hundred sixty-one million, one hundred two thousand, two hundred ten".