345315137 has 2 divisors, whose sum is σ = 345315138. Its totient is φ = 345315136.

The previous prime is 345315133. The next prime is 345315199. The reversal of 345315137 is 731513543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306390016 + 38925121 = 17504^2 + 6239^2 .

It is a cyclic number.

It is not a de Polignac number, because 345315137 - 2² = 345315133 is a prime.

It is equal to p_18565250 and since 345315137 and 18565250 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (345315133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172657568 + 172657569.

It is an arithmetic number, because the mean of its divisors is an integer number (172657569).

Almost surely, 2^345315137 is an apocalyptic number.

It is an amenable number.

345315137 is a deficient number, since it is larger than the sum of its proper divisors (1).

345315137 is an equidigital number, since it uses as much as digits as its factorization.

345315137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 32.

The square root of 345315137 is about 18582.6568875390. The cubic root of 345315137 is about 701.5713929528.

The spelling of 345315137 in words is "three hundred forty-five million, three hundred fifteen thousand, one hundred thirty-seven".