344146189 has 2 divisors, whose sum is σ = 344146190. Its totient is φ = 344146188.

The previous prime is 344146151. The next prime is 344146193. The reversal of 344146189 is 981641443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342805225 + 1340964 = 18515^2 + 1158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344146189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344146129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172073094 + 172073095.

It is an arithmetic number, because the mean of its divisors is an integer number (172073095).

Almost surely, 2^344146189 is an apocalyptic number.

It is an amenable number.

344146189 is a deficient number, since it is larger than the sum of its proper divisors (1).

344146189 is an equidigital number, since it uses as much as digits as its factorization.

344146189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 344146189 is about 18551.1775637020. The cubic root of 344146189 is about 700.7788534971.

The spelling of 344146189 in words is "three hundred forty-four million, one hundred forty-six thousand, one hundred eighty-nine".