1116645 has 32 divisors (see below), whose sum is σ = 1969920. Its totient is φ = 537600.

The previous prime is 1116641. The next prime is 1116653. The reversal of 1116645 is 5466111.

It is not a de Polignac number, because 1116645 - 2² = 1116641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7320 + ... + 7470.

It is an arithmetic number, because the mean of its divisors is an integer number (61560).

2^1116645 is an apocalyptic number.

1116645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1116645 is a deficient number, since it is larger than the sum of its proper divisors (853275).

1116645 is a wasteful number, since it uses less digits than its factorization.

1116645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205.

The product of its digits is 720, while the sum is 24.

The square root of 1116645 is about 1056.7142470886. The cubic root of 1116645 is about 103.7460829798.

It can be divided in two parts, 11166 and 45, that added together give a palindrome (11211).

The spelling of 1116645 in words is "one million, one hundred sixteen thousand, six hundred forty-five".