361742219 has 2 divisors, whose sum is σ = 361742220. Its totient is φ = 361742218.

The previous prime is 361742209. The next prime is 361742233. The reversal of 361742219 is 912247163.

It is a weak prime.

It is an emirp because it is prime and its reverse (912247163) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361742219 is a prime.

It is a super-2 number, since 2×361742219² = 261714866014087922, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (361742209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180871109 + 180871110.

It is an arithmetic number, because the mean of its divisors is an integer number (180871110).

Almost surely, 2^361742219 is an apocalyptic number.

361742219 is a deficient number, since it is larger than the sum of its proper divisors (1).

361742219 is an equidigital number, since it uses as much as digits as its factorization.

361742219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 361742219 is about 19019.5220497256. The cubic root of 361742219 is about 712.5243863204.

The spelling of 361742219 in words is "three hundred sixty-one million, seven hundred forty-two thousand, two hundred nineteen".