161470219 has 2 divisors, whose sum is σ = 161470220. Its totient is φ = 161470218.

The previous prime is 161470193. The next prime is 161470223. The reversal of 161470219 is 912074161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161470219 - 2¹⁷ = 161339147 is a prime.

It is a super-2 number, since 2×161470219² = 52145263247815922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161470229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80735109 + 80735110.

It is an arithmetic number, because the mean of its divisors is an integer number (80735110).

Almost surely, 2^161470219 is an apocalyptic number.

161470219 is a deficient number, since it is larger than the sum of its proper divisors (1).

161470219 is an equidigital number, since it uses as much as digits as its factorization.

161470219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 161470219 is about 12707.0932553436. The cubic root of 161470219 is about 544.5412844709.

The spelling of 161470219 in words is "one hundred sixty-one million, four hundred seventy thousand, two hundred nineteen".