161102219 has 2 divisors, whose sum is σ = 161102220. Its totient is φ = 161102218.

The previous prime is 161102213. The next prime is 161102231. The reversal of 161102219 is 912201161.

It is a happy number.

161102219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161102219 - 2¹² = 161098123 is a prime.

It is a super-2 number, since 2×161102219² = 51907849933447922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161102194 and 161102203.

It is not a weakly prime, because it can be changed into another prime (161102213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80551109 + 80551110.

It is an arithmetic number, because the mean of its divisors is an integer number (80551110).

Almost surely, 2^161102219 is an apocalyptic number.

161102219 is a deficient number, since it is larger than the sum of its proper divisors (1).

161102219 is an equidigital number, since it uses as much as digits as its factorization.

161102219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 161102219 is about 12692.6048941894. The cubic root of 161102219 is about 544.1272894086.

The spelling of 161102219 in words is "one hundred sixty-one million, one hundred two thousand, two hundred nineteen".