1812620116 has 6 divisors (see below), whose sum is σ = 3172085210. Its totient is φ = 906310056.

The previous prime is 1812620113. The next prime is 1812620137. The reversal of 1812620116 is 6110262181.

It can be written as a sum of positive squares in only one way, i.e., 1072562500 + 740057616 = 32750^2 + 27204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812620111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226577511 + ... + 226577518.

Almost surely, 2^1812620116 is an apocalyptic number.

It is an amenable number.

1812620116 is a deficient number, since it is larger than the sum of its proper divisors (1359465094).

1812620116 is a wasteful number, since it uses less digits than its factorization.

1812620116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453155033 (or 453155031 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1812620116 is about 42574.8765823226. The cubic root of 1812620116 is about 1219.2766732645.

Adding to 1812620116 its reverse (6110262181), we get a palindrome (7922882297).

The spelling of 1812620116 in words is "one billion, eight hundred twelve million, six hundred twenty thousand, one hundred sixteen".