1613312 has 40 divisors (see below), whose sum is σ = 3388176. Its totient is φ = 765952.

The previous prime is 1613279. The next prime is 1613321. The reversal of 1613312 is 2133161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11708 + ... + 11844.

2^1613312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694088).

1613312 is an abundant number, since it is smaller than the sum of its proper divisors (1774864).

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

1613312 is an equidigital number, since it uses as much as digits as its factorization.

1613312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 162 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 1613312 is about 1270.1621943673. The cubic root of 1613312 is about 117.2841851091.

Adding to 1613312 its reverse (2133161), we get a palindrome (3746473).

The spelling of 1613312 in words is "one million, six hundred thirteen thousand, three hundred twelve".