1101813 has 8 divisors (see below), whose sum is σ = 1488000. Its totient is φ = 725088.

The previous prime is 1101811. The next prime is 1101839. The reversal of 1101813 is 3181011.

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

It is not a de Polignac number, because 1101813 - 2¹ = 1101811 is a prime.

1101813 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1101792 and 1101801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (186000).

2^1101813 is an apocalyptic number.

It is an amenable number.

1101813 is a deficient number, since it is larger than the sum of its proper divisors (386187).

1101813 is an equidigital number, since it uses as much as digits as its factorization.

1101813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1101813 is about 1049.6728061639. The cubic root of 1101813 is about 103.2846932604.

Adding to 1101813 its reverse (3181011), we get a palindrome (4282824).

The spelling of 1101813 in words is "one million, one hundred one thousand, eight hundred thirteen".