1115872 has 12 divisors (see below), whose sum is σ = 2196936. Its totient is φ = 557920.

The previous prime is 1115857. The next prime is 1115879. The reversal of 1115872 is 2785111.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115879) by changing a digit.

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 as a sum of consecutive naturals, namely, 17404 + ... + 17467.

It is an arithmetic number, because the mean of its divisors is an integer number (183078).

2^1115872 is an apocalyptic number.

It is an amenable number.

1115872 is a deficient number, since it is larger than the sum of its proper divisors (1081064).

1115872 is an equidigital number, since it uses as much as digits as its factorization.

1115872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34881 (or 34873 counting only the distinct ones).

The product of its digits is 560, while the sum is 25.

The square root of 1115872 is about 1056.3484273667. The cubic root of 1115872 is about 103.7221379676.

The spelling of 1115872 in words is "one million, one hundred fifteen thousand, eight hundred seventy-two".