1118901 has 8 divisors (see below), whose sum is σ = 1705024. Its totient is φ = 639360.

The previous prime is 1118893. The next prime is 1118911. The reversal of 1118901 is 1098111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1118901 - 2³ = 1118893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 53281 = 1118901 / (1 + 1 + 1 + 8 + 9 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26620 + ... + 26661.

It is an arithmetic number, because the mean of its divisors is an integer number (213128).

2^1118901 is an apocalyptic number.

It is an amenable number.

1118901 is a deficient number, since it is larger than the sum of its proper divisors (586123).

1118901 is an equidigital number, since it uses as much as digits as its factorization.

1118901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53291.

The product of its (nonzero) digits is 72, while the sum is 21.

The square root of 1118901 is about 1057.7811682952. The cubic root of 1118901 is about 103.8159033552.

The spelling of 1118901 in words is "one million, one hundred eighteen thousand, nine hundred one".