616313 has 2 divisors, whose sum is σ = 616314. Its totient is φ = 616312.

The previous prime is 616307. The next prime is 616321. The reversal of 616313 is 313616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 43264 = 757^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 616313 - 2¹⁰ = 615289 is a prime.

It is not a weakly prime, because it can be changed into another prime (616393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308156 + 308157.

It is an arithmetic number, because the mean of its divisors is an integer number (308157).

2⁶¹⁶³¹³ is an apocalyptic number.

It is an amenable number.

616313 is a deficient number, since it is larger than the sum of its proper divisors (1).

616313 is an equidigital number, since it uses as much as digits as its factorization.

616313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 20.

The square root of 616313 is about 785.0560489545. The cubic root of 616313 is about 85.1008261438.

Adding to 616313 its reverse (313616), we get a palindrome (929929).

It can be divided in two parts, 616 and 313, that added together give a palindrome (929).

The spelling of 616313 in words is "six hundred sixteen thousand, three hundred thirteen".