1812021483 has 8 divisors (see below), whose sum is σ = 2558148048. Its totient is φ = 1136954624.

The previous prime is 1812021481. The next prime is 1812021487. The reversal of 1812021483 is 3841202181.

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 1812021483 - 2¹ = 1812021481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1812021483.

It is not an unprimeable number, because it can be changed into a prime (1812021481) 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, 17764866 + ... + 17764967.

It is an arithmetic number, because the mean of its divisors is an integer number (319768506).

Almost surely, 2^1812021483 is an apocalyptic number.

1812021483 is a deficient number, since it is larger than the sum of its proper divisors (746126565).

1812021483 is a wasteful number, since it uses less digits than its factorization.

1812021483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35529853.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1812021483 is about 42567.8456466850. The cubic root of 1812021483 is about 1219.1424330354.

The spelling of 1812021483 in words is "one billion, eight hundred twelve million, twenty-one thousand, four hundred eighty-three".