361345189 has 2 divisors, whose sum is σ = 361345190. Its totient is φ = 361345188.

The previous prime is 361345163. The next prime is 361345213. The reversal of 361345189 is 981543163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218064289 + 143280900 = 14767^2 + 11970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361345189 is a prime.

It is a super-2 number, since 2×361345189² = 261140691226891442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361345129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180672594 + 180672595.

It is an arithmetic number, because the mean of its divisors is an integer number (180672595).

Almost surely, 2^361345189 is an apocalyptic number.

It is an amenable number.

361345189 is a deficient number, since it is larger than the sum of its proper divisors (1).

361345189 is an equidigital number, since it uses as much as digits as its factorization.

361345189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 361345189 is about 19009.0817505739. The cubic root of 361345189 is about 712.2636139600.

The spelling of 361345189 in words is "three hundred sixty-one million, three hundred forty-five thousand, one hundred eighty-nine".