344321137 has 2 divisors, whose sum is σ = 344321138. Its totient is φ = 344321136.

The previous prime is 344321129. The next prime is 344321161. The reversal of 344321137 is 731123443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244640881 + 99680256 = 15641^2 + 9984^2 .

It is an emirp because it is prime and its reverse (731123443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344321137 - 2³ = 344321129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344321177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172160568 + 172160569.

It is an arithmetic number, because the mean of its divisors is an integer number (172160569).

Almost surely, 2^344321137 is an apocalyptic number.

It is an amenable number.

344321137 is a deficient number, since it is larger than the sum of its proper divisors (1).

344321137 is an equidigital number, since it uses as much as digits as its factorization.

344321137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 28.

The square root of 344321137 is about 18555.8922447831. The cubic root of 344321137 is about 700.8975812296.

The spelling of 344321137 in words is "three hundred forty-four million, three hundred twenty-one thousand, one hundred thirty-seven".