345518573137 has 2 divisors, whose sum is σ = 345518573138. Its totient is φ = 345518573136.

The previous prime is 345518573131. The next prime is 345518573173. The reversal of 345518573137 is 731375815543.

Together with next prime (345518573173) 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., 319904491201 + 25614081936 = 565601^2 + 160044^2 .

It is a cyclic number.

It is not a de Polignac number, because 345518573137 - 2³ = 345518573129 is a prime.

It is not a weakly prime, because it can be changed into another prime (345518573131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172759286568 + 172759286569.

It is an arithmetic number, because the mean of its divisors is an integer number (172759286569).

Almost surely, 2^345518573137 is an apocalyptic number.

It is an amenable number.

345518573137 is a deficient number, since it is larger than the sum of its proper divisors (1).

345518573137 is an equidigital number, since it uses as much as digits as its factorization.

345518573137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292000, while the sum is 52.

The spelling of 345518573137 in words is "three hundred forty-five billion, five hundred eighteen million, five hundred seventy-three thousand, one hundred thirty-seven".