1812483685 has 4 divisors (see below), whose sum is σ = 2174980428. Its totient is φ = 1449986944.

The previous prime is 1812483671. The next prime is 1812483691. The reversal of 1812483685 is 5863842181.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 260596449 + 1551887236 = 16143^2 + 39394^2 .

It is a cyclic number.

It is not a de Polignac number, because 1812483685 - 2²³ = 1804095077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 181248364 + ... + 181248373.

It is an arithmetic number, because the mean of its divisors is an integer number (543745107).

Almost surely, 2^1812483685 is an apocalyptic number.

It is an amenable number.

1812483685 is a deficient number, since it is larger than the sum of its proper divisors (362496743).

1812483685 is an equidigital number, since it uses as much as digits as its factorization.

1812483685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362496742.

The product of its digits is 368640, while the sum is 46.

The square root of 1812483685 is about 42573.2743044272. The cubic root of 1812483685 is about 1219.2460819476.

The spelling of 1812483685 in words is "one billion, eight hundred twelve million, four hundred eighty-three thousand, six hundred eighty-five".