340522513 has 2 divisors, whose sum is σ = 340522514. Its totient is φ = 340522512.

The previous prime is 340522499. The next prime is 340522531. The reversal of 340522513 is 315225043.

Together with next prime (340522531) 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., 316590849 + 23931664 = 17793^2 + 4892^2 .

It is a cyclic number.

It is not a de Polignac number, because 340522513 - 2⁹ = 340522001 is a prime.

It is not a weakly prime, because it can be changed into another prime (340522543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170261256 + 170261257.

It is an arithmetic number, because the mean of its divisors is an integer number (170261257).

Almost surely, 2^340522513 is an apocalyptic number.

It is an amenable number.

340522513 is a deficient number, since it is larger than the sum of its proper divisors (1).

340522513 is an equidigital number, since it uses as much as digits as its factorization.

340522513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 340522513 is about 18453.2520982075. The cubic root of 340522513 is about 698.3105605374.

Adding to 340522513 its reverse (315225043), we get a palindrome (655747556).

The spelling of 340522513 in words is "three hundred forty million, five hundred twenty-two thousand, five hundred thirteen".