1815082983 has 12 divisors (see below), whose sum is σ = 2996327568. Its totient is φ = 1037190240.

The previous prime is 1815082937. The next prime is 1815082991. The reversal of 1815082983 is 3892805181.

It is a happy number.

It is not a de Polignac number, because 1815082983 - 2¹³ = 1815074791 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1815082993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14405358 + ... + 14405483.

It is an arithmetic number, because the mean of its divisors is an integer number (249693964).

Almost surely, 2^1815082983 is an apocalyptic number.

1815082983 is a deficient number, since it is larger than the sum of its proper divisors (1181244585).

1815082983 is a wasteful number, since it uses less digits than its factorization.

1815082983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28810854 (or 28810851 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 1815082983 is about 42603.7907116256. The cubic root of 1815082983 is about 1219.8286472142.

The spelling of 1815082983 in words is "one billion, eight hundred fifteen million, eighty-two thousand, nine hundred eighty-three".