1283388325 has 6 divisors (see below), whose sum is σ = 1591401554. Its totient is φ = 1026710640.

The previous prime is 1283388317. The next prime is 1283388331. The reversal of 1283388325 is 5238833821.

It can be written as a sum of positive squares in 3 ways, for example, as 169364196 + 1114024129 = 13014^2 + 33377^2 .

It is not a de Polignac number, because 1283388325 - 2³ = 1283388317 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 (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25667742 + ... + 25667791.

Almost surely, 2^1283388325 is an apocalyptic number.

It is an amenable number.

1283388325 is a deficient number, since it is larger than the sum of its proper divisors (308013229).

1283388325 is an equidigital number, since it uses as much as digits as its factorization.

1283388325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51335543 (or 51335538 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 1283388325 is about 35824.4096252820. The cubic root of 1283388325 is about 1086.7242576254.

The spelling of 1283388325 in words is "one billion, two hundred eighty-three million, three hundred eighty-eight thousand, three hundred twenty-five".