1814913 has 8 divisors (see below), whose sum is σ = 2688800. Its totient is φ = 1209924.

The previous prime is 1814909. The next prime is 1814921. The reversal of 1814913 is 3194181.

It is not a de Polignac number, because 1814913 - 2² = 1814909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 67219 = 1814913 / (1 + 8 + 1 + 4 + 9 + 1 + 3).

It is a Duffinian number.

1814913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1814983) 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, 33583 + ... + 33636.

It is an arithmetic number, because the mean of its divisors is an integer number (336100).

2^1814913 is an apocalyptic number.

It is an amenable number.

1814913 is a deficient number, since it is larger than the sum of its proper divisors (873887).

1814913 is an equidigital number, since it uses as much as digits as its factorization.

1814913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67228 (or 67222 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1814913 is about 1347.1870694154. The cubic root of 1814913 is about 121.9790566934.

The spelling of 1814913 in words is "one million, eight hundred fourteen thousand, nine hundred thirteen".