616120313 has 4 divisors (see below), whose sum is σ = 626220708. Its totient is φ = 606019920.

The previous prime is 616120279. The next prime is 616120331. The reversal of 616120313 is 313021616.

It is a happy number.

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 38775529 + 577344784 = 6227^2 + 24028^2 .

It is a cyclic number.

It is not a de Polignac number, because 616120313 - 2²² = 611926009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616120913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050106 + ... + 5050227.

It is an arithmetic number, because the mean of its divisors is an integer number (156555177).

Almost surely, 2^616120313 is an apocalyptic number.

It is an amenable number.

616120313 is a deficient number, since it is larger than the sum of its proper divisors (10100395).

616120313 is a wasteful number, since it uses less digits than its factorization.

616120313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100394.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 616120313 is about 24821.7709481012. The cubic root of 616120313 is about 850.9195644501.

Adding to 616120313 its reverse (313021616), we get a palindrome (929141929).

The spelling of 616120313 in words is "six hundred sixteen million, one hundred twenty thousand, three hundred thirteen".