345338137 has 2 divisors, whose sum is σ = 345338138. Its totient is φ = 345338136.

The previous prime is 345338111. The next prime is 345338173. The reversal of 345338137 is 731833543.

Together with next prime (345338173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249513616 + 95824521 = 15796^2 + 9789^2 .

It is a cyclic number.

It is not a de Polignac number, because 345338137 - 2¹⁵ = 345305369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345338096 and 345338105.

It is not a weakly prime, because it can be changed into another prime (345338197) 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, 172669068 + 172669069.

It is an arithmetic number, because the mean of its divisors is an integer number (172669069).

Almost surely, 2^345338137 is an apocalyptic number.

It is an amenable number.

345338137 is a deficient number, since it is larger than the sum of its proper divisors (1).

345338137 is an equidigital number, since it uses as much as digits as its factorization.

345338137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 345338137 is about 18583.2757338420. The cubic root of 345338137 is about 701.5869688544.

The spelling of 345338137 in words is "three hundred forty-five million, three hundred thirty-eight thousand, one hundred thirty-seven".