1818131283 has 12 divisors (see below), whose sum is σ = 2780671608. Its totient is φ = 1140788160.

The previous prime is 1818131281. The next prime is 1818131311. The reversal of 1818131283 is 3821318181.

It is not a de Polignac number, because 1818131283 - 2¹ = 1818131281 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1818131281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5941453 + ... + 5941758.

It is an arithmetic number, because the mean of its divisors is an integer number (231722634).

Almost surely, 2^1818131283 is an apocalyptic number.

1818131283 is a deficient number, since it is larger than the sum of its proper divisors (962540325).

1818131283 is a wasteful number, since it uses less digits than its factorization.

1818131283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11883234 (or 11883231 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 1818131283 is about 42639.5506894714. The cubic root of 1818131283 is about 1220.5111364895.

The spelling of 1818131283 in words is "one billion, eight hundred eighteen million, one hundred thirty-one thousand, two hundred eighty-three".