1613216 has 24 divisors (see below), whose sum is σ = 3465504. Its totient is φ = 733120.

The previous prime is 1613201. The next prime is 1613279. The reversal of 1613216 is 6123161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940 + ... + 2643.

It is an arithmetic number, because the mean of its divisors is an integer number (144396).

2^1613216 is an apocalyptic number.

1613216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1613216 is an abundant number, since it is smaller than the sum of its proper divisors (1852288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1613216 is a wasteful number, since it uses less digits than its factorization.

1613216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604 (or 4596 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1613216 is about 1270.1244033558. The cubic root of 1613216 is about 117.2818587343.

Adding to 1613216 its reverse (6123161), we get a palindrome (7736377).

The spelling of 1613216 in words is "one million, six hundred thirteen thousand, two hundred sixteen".