612347313 has 4 divisors (see below), whose sum is σ = 816463088. Its totient is φ = 408231540.

The previous prime is 612347279. The next prime is 612347321. The reversal of 612347313 is 313743216.

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 612347313 - 2¹⁰ = 612346289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612347353) 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, 102057883 + ... + 102057888.

It is an arithmetic number, because the mean of its divisors is an integer number (204115772).

Almost surely, 2^612347313 is an apocalyptic number.

It is an amenable number.

612347313 is a deficient number, since it is larger than the sum of its proper divisors (204115775).

612347313 is a wasteful number, since it uses less digits than its factorization.

612347313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204115774.

The product of its digits is 9072, while the sum is 30.

The square root of 612347313 is about 24745.6524060288. The cubic root of 612347313 is about 849.1790518874.

The spelling of 612347313 in words is "six hundred twelve million, three hundred forty-seven thousand, three hundred thirteen".