1813115 has 8 divisors (see below), whose sum is σ = 2196720. Its totient is φ = 1436512.

The previous prime is 1813081. The next prime is 1813121. The reversal of 1813115 is 5113181.

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

It is a cyclic number.

It is not a de Polignac number, because 1813115 - 2¹⁰ = 1812091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 2229.

It is an arithmetic number, because the mean of its divisors is an integer number (274590).

2^1813115 is an apocalyptic number.

1813115 is a deficient number, since it is larger than the sum of its proper divisors (383605).

1813115 is a wasteful number, since it uses less digits than its factorization.

1813115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501.

The product of its digits is 120, while the sum is 20.

The square root of 1813115 is about 1346.5195876778. The cubic root of 1813115 is about 121.9387626024.

Adding to 1813115 its reverse (5113181), we get a palindrome (6926296).

The spelling of 1813115 in words is "one million, eight hundred thirteen thousand, one hundred fifteen".