1306356056 has 8 divisors (see below), whose sum is σ = 2449417620. Its totient is φ = 653178024.

The previous prime is 1306356013. The next prime is 1306356061. The reversal of 1306356056 is 6506536031.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1306356056² = 3413132290095750272, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 81647246 + ... + 81647261.

Almost surely, 2^1306356056 is an apocalyptic number.

It is an amenable number.

1306356056 is a deficient number, since it is larger than the sum of its proper divisors (1143061564).

1306356056 is a wasteful number, since it uses less digits than its factorization.

1306356056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163294513 (or 163294509 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 1306356056 is about 36143.5479166061. The cubic root of 1306356056 is about 1093.1686982753.

The spelling of 1306356056 in words is "one billion, three hundred six million, three hundred fifty-six thousand, fifty-six".