345322513 has 4 divisors (see below), whose sum is σ = 365635620. Its totient is φ = 325009408.

The previous prime is 345322501. The next prime is 345322519. The reversal of 345322513 is 315223543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315223543 = 67 ⋅4704829.

It can be written as a sum of positive squares in 2 ways, for example, as 148425489 + 196897024 = 12183^2 + 14032^2 .

It is a cyclic number.

It is not a de Polignac number, because 345322513 - 2⁹ = 345322001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345322519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10156528 + ... + 10156561.

It is an arithmetic number, because the mean of its divisors is an integer number (91408905).

Almost surely, 2^345322513 is an apocalyptic number.

It is an amenable number.

345322513 is a deficient number, since it is larger than the sum of its proper divisors (20313107).

345322513 is a wasteful number, since it uses less digits than its factorization.

345322513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20313106.

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

The square root of 345322513 is about 18582.8553511025. The cubic root of 345322513 is about 701.5763881520.

The spelling of 345322513 in words is "three hundred forty-five million, three hundred twenty-two thousand, five hundred thirteen".