1300000833 has 40 divisors (see below), whose sum is σ = 1965610152. Its totient is φ = 856203264.

The previous prime is 1300000831. The next prime is 1300000909. The reversal of 1300000833 is 3380000031.

It can be written as a sum of positive squares in 4 ways, for example, as 631416384 + 668584449 = 25128^2 + 25857^2 .

It is not a de Polignac number, because 1300000833 - 2¹ = 1300000831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1300000831) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4100791 + ... + 4101107.

Almost surely, 2^1300000833 is an apocalyptic number.

1300000833 is the 20817-th octagonal number.

It is an amenable number.

1300000833 is a deficient number, since it is larger than the sum of its proper divisors (665609319).

1300000833 is a wasteful number, since it uses less digits than its factorization.

1300000833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 774 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1300000833 is about 36055.5243062696. The cubic root of 1300000833 is about 1091.3931161714.

Adding to 1300000833 its reverse (3380000031), we get a palindrome (4680000864).

The spelling of 1300000833 in words is "one billion, three hundred million, eight hundred thirty-three", and thus it is an aban number.