1165612 has 36 divisors (see below), whose sum is σ = 2505720. Its totient is φ = 471744.

The previous prime is 1165583. The next prime is 1165643. The reversal of 1165612 is 2165611.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3568 + ... + 3880.

2^1165612 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 1165612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252860).

1165612 is an abundant number, since it is smaller than the sum of its proper divisors (1340108).

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

1165612 is a wasteful number, since it uses less digits than its factorization.

1165612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 341 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 1165612 is about 1079.6351235487. The cubic root of 1165612 is about 105.2409282357.

Subtracting 1165612 from its reverse (2165611), we obtain a palindrome (999999).

The spelling of 1165612 in words is "one million, one hundred sixty-five thousand, six hundred twelve".