1306631275 has 12 divisors (see below), whose sum is σ = 1631883400. Its totient is φ = 1037782080.

The previous prime is 1306631269. The next prime is 1306631299. The reversal of 1306631275 is 5721366031.

It is not a de Polignac number, because 1306631275 - 2¹⁷ = 1306500203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1306631275.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184530 + ... + 191479.

Almost surely, 2^1306631275 is an apocalyptic number.

1306631275 is a deficient number, since it is larger than the sum of its proper divisors (325252125).

1306631275 is a wasteful number, since it uses less digits than its factorization.

1306631275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376158 (or 376153 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 1306631275 is about 36147.3550208034. The cubic root of 1306631275 is about 1093.2454613367.

The spelling of 1306631275 in words is "one billion, three hundred six million, six hundred thirty-one thousand, two hundred seventy-five".