1306563316 has 6 divisors (see below), whose sum is σ = 2286485810. Its totient is φ = 653281656.

The previous prime is 1306563257. The next prime is 1306563347. The reversal of 1306563316 is 6133656031.

It can be written as a sum of positive squares in only one way, i.e., 1106227600 + 200335716 = 33260^2 + 14154^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163320411 + ... + 163320418.

Almost surely, 2^1306563316 is an apocalyptic number.

It is an amenable number.

1306563316 is a deficient number, since it is larger than the sum of its proper divisors (979922494).

1306563316 is a wasteful number, since it uses less digits than its factorization.

1306563316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326640833 (or 326640831 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 1306563316 is about 36146.4149812952. The cubic root of 1306563316 is about 1093.2265074671.

It can be divided in two parts, 13065633 and 16, that multiplied together give a triangular number (209050128 = T₂₀₄₄₇).

The spelling of 1306563316 in words is "one billion, three hundred six million, five hundred sixty-three thousand, three hundred sixteen".