1813124 has 12 divisors (see below), whose sum is σ = 3206364. Its totient is φ = 897024.

The previous prime is 1813121. The next prime is 1813139. The reversal of 1813124 is 4213181.

It can be written as a sum of positive squares in 2 ways, for example, as 1364224 + 448900 = 1168^2 + 670^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1813096 and 1813105.

It is not an unprimeable number, because it can be changed into a prime (1813121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949 + ... + 2724.

It is an arithmetic number, because the mean of its divisors is an integer number (267197).

2^1813124 is an apocalyptic number.

It is an amenable number.

1813124 is a deficient number, since it is larger than the sum of its proper divisors (1393240).

1813124 is a wasteful number, since it uses less digits than its factorization.

1813124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774 (or 4772 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 1813124 is about 1346.5229296228. The cubic root of 1813124 is about 121.9389643633.

The spelling of 1813124 in words is "one million, eight hundred thirteen thousand, one hundred twenty-four".