340122513 has 4 divisors (see below), whose sum is σ = 453496688. Its totient is φ = 226748340.

The previous prime is 340122509. The next prime is 340122521. The reversal of 340122513 is 315221043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 340122513 - 2² = 340122509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340122513.

It is not an unprimeable number, because it can be changed into a prime (340122313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56687083 + ... + 56687088.

It is an arithmetic number, because the mean of its divisors is an integer number (113374172).

Almost surely, 2^340122513 is an apocalyptic number.

It is an amenable number.

340122513 is a deficient number, since it is larger than the sum of its proper divisors (113374175).

340122513 is a wasteful number, since it uses less digits than its factorization.

340122513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113374174.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 340122513 is about 18442.4107155220. The cubic root of 340122513 is about 698.0370263306.

Adding to 340122513 its reverse (315221043), we get a palindrome (655343556).

The spelling of 340122513 in words is "three hundred forty million, one hundred twenty-two thousand, five hundred thirteen".