1813182873 has 8 divisors (see below), whose sum is σ = 2469015168. Its totient is φ = 1183069584.

The previous prime is 1813182869. The next prime is 1813182881. The reversal of 1813182873 is 3782813181.

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

It is not a de Polignac number, because 1813182873 - 2² = 1813182869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1813182803) 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, 6429586 + ... + 6429867.

It is an arithmetic number, because the mean of its divisors is an integer number (308626896).

Almost surely, 2^1813182873 is an apocalyptic number.

It is an amenable number.

1813182873 is a deficient number, since it is larger than the sum of its proper divisors (655832295).

1813182873 is a wasteful number, since it uses less digits than its factorization.

1813182873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12859503.

The product of its digits is 64512, while the sum is 42.

The square root of 1813182873 is about 42581.4850962246. The cubic root of 1813182873 is about 1219.4028415443.

The spelling of 1813182873 in words is "one billion, eight hundred thirteen million, one hundred eighty-two thousand, eight hundred seventy-three".