1828612813 has 2 divisors, whose sum is σ = 1828612814. Its totient is φ = 1828612812.

The previous prime is 1828612787. The next prime is 1828612831. The reversal of 1828612813 is 3182168281.

1828612813 = 30237² + 30238².

Together with next prime (1828612831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 914336644 + 914276169 = 30238^2 + 30237^2 .

It is an emirp because it is prime and its reverse (3182168281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1828612813 - 2⁹ = 1828612301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1828612873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914306406 + 914306407.

It is an arithmetic number, because the mean of its divisors is an integer number (914306407).

Almost surely, 2^1828612813 is an apocalyptic number.

1828612813 is the 30238-th centered square number.

It is an amenable number.

1828612813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828612813 is an equidigital number, since it uses as much as digits as its factorization.

1828612813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 40.

The square root of 1828612813 is about 42762.2825981027. The cubic root of 1828612813 is about 1222.8520600329.

The spelling of 1828612813 in words is "one billion, eight hundred twenty-eight million, six hundred twelve thousand, eight hundred thirteen".