1616313 has 4 divisors (see below), whose sum is σ = 2155088. Its totient is φ = 1077540.

The previous prime is 1616297. The next prime is 1616347. The reversal of 1616313 is 3136161.

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 1616313 - 2⁴ = 1616297 is a prime.

It is a super-2 number, since 2×1616313² = 5224935427938, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

1616313 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1616313.

It is not an unprimeable number, because it can be changed into a prime (1616113) 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, 269383 + ... + 269388.

It is an arithmetic number, because the mean of its divisors is an integer number (538772).

2^1616313 is an apocalyptic number.

It is an amenable number.

1616313 is a deficient number, since it is larger than the sum of its proper divisors (538775).

1616313 is an equidigital number, since it uses as much as digits as its factorization.

1616313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538774.

The product of its digits is 324, while the sum is 21.

The square root of 1616313 is about 1271.3429906992. The cubic root of 1616313 is about 117.3568620672.

The spelling of 1616313 in words is "one million, six hundred sixteen thousand, three hundred thirteen".