1118745 has 16 divisors (see below), whose sum is σ = 1989120. Its totient is φ = 596592.

The previous prime is 1118737. The next prime is 1118749. The reversal of 1118745 is 5478111.

It is not a de Polignac number, because 1118745 - 2³ = 1118737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1118749) 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 in 15 ways as a sum of consecutive naturals, for example, 4009 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (124320).

2^1118745 is an apocalyptic number.

1118745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1118745 is a deficient number, since it is larger than the sum of its proper divisors (870375).

1118745 is an equidigital number, since it uses as much as digits as its factorization.

1118745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8301 (or 8295 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 1118745 is about 1057.7074264654. The cubic root of 1118745 is about 103.8110783725.

The spelling of 1118745 in words is "one million, one hundred eighteen thousand, seven hundred forty-five".