340354513 has 2 divisors, whose sum is σ = 340354514. Its totient is φ = 340354512.

The previous prime is 340354477. The next prime is 340354519. The reversal of 340354513 is 315453043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185177664 + 155176849 = 13608^2 + 12457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340354513 is a prime.

It is not a weakly prime, because it can be changed into another prime (340354519) 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, 170177256 + 170177257.

It is an arithmetic number, because the mean of its divisors is an integer number (170177257).

Almost surely, 2^340354513 is an apocalyptic number.

It is an amenable number.

340354513 is a deficient number, since it is larger than the sum of its proper divisors (1).

340354513 is an equidigital number, since it uses as much as digits as its factorization.

340354513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 340354513 is about 18448.6994934602. The cubic root of 340354513 is about 698.1957022750.

The spelling of 340354513 in words is "three hundred forty million, three hundred fifty-four thousand, five hundred thirteen".