340507513 has 4 divisors (see below), whose sum is σ = 341737060. Its totient is φ = 339277968.

The previous prime is 340507511. The next prime is 340507523. The reversal of 340507513 is 315705043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76510009 + 263997504 = 8747^2 + 16248^2 .

It is a cyclic number.

It is not a de Polignac number, because 340507513 - 2¹ = 340507511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340507511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614358 + ... + 614911.

It is an arithmetic number, because the mean of its divisors is an integer number (85434265).

Almost surely, 2^340507513 is an apocalyptic number.

It is an amenable number.

340507513 is a deficient number, since it is larger than the sum of its proper divisors (1229547).

340507513 is a wasteful number, since it uses less digits than its factorization.

340507513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229546.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 340507513 is about 18452.8456613066. The cubic root of 340507513 is about 698.3003068716.

The spelling of 340507513 in words is "three hundred forty million, five hundred seven thousand, five hundred thirteen".