1306522426 has 24 divisors (see below), whose sum is σ = 2161920852. Its totient is φ = 591729600.

The previous prime is 1306522411. The next prime is 1306522439. The reversal of 1306522426 is 6242256031.

It can be written as a sum of positive squares in 2 ways, for example, as 1118969401 + 187553025 = 33451^2 + 13695^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58396 + ... + 77608.

Almost surely, 2^1306522426 is an apocalyptic number.

1306522426 is a deficient number, since it is larger than the sum of its proper divisors (855398426).

1306522426 is a wasteful number, since it uses less digits than its factorization.

1306522426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19518 (or 19507 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1306522426 is about 36145.8493606112. The cubic root of 1306522426 is about 1093.2151028665.

Adding to 1306522426 its reverse (6242256031), we get a palindrome (7548778457).

The spelling of 1306522426 in words is "one billion, three hundred six million, five hundred twenty-two thousand, four hundred twenty-six".