345660313 has 4 divisors (see below), whose sum is σ = 350035840. Its totient is φ = 341284788.

The previous prime is 345660311. The next prime is 345660317. The reversal of 345660313 is 313066543.

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 a cyclic number.

It is not a de Polignac number, because 345660313 - 2¹ = 345660311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345660311) 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, 2187645 + ... + 2187802.

It is an arithmetic number, because the mean of its divisors is an integer number (87508960).

Almost surely, 2^345660313 is an apocalyptic number.

It is an amenable number.

345660313 is a deficient number, since it is larger than the sum of its proper divisors (4375527).

345660313 is an equidigital number, since it uses as much as digits as its factorization.

345660313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375526.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 345660313 is about 18591.9421524487. The cubic root of 345660313 is about 701.8050780099.

The spelling of 345660313 in words is "three hundred forty-five million, six hundred sixty thousand, three hundred thirteen".