1306247063 has 16 divisors (see below), whose sum is σ = 1454547456. Its totient is φ = 1162955040.

The previous prime is 1306247051. The next prime is 1306247069. The reversal of 1306247063 is 3607426031.

It is a cyclic number.

It is not a de Polignac number, because 1306247063 - 2²⁴ = 1289469847 is a prime.

It is a super-2 number, since 2×1306247063² = 3412562779192251938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306247069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375470 + ... + 378932.

It is an arithmetic number, because the mean of its divisors is an integer number (90909216).

Almost surely, 2^1306247063 is an apocalyptic number.

1306247063 is a deficient number, since it is larger than the sum of its proper divisors (148300393).

1306247063 is a wasteful number, since it uses less digits than its factorization.

1306247063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 1306247063 is about 36142.0401056720. The cubic root of 1306247063 is about 1093.1382953722.

The spelling of 1306247063 in words is "one billion, three hundred six million, two hundred forty-seven thousand, sixty-three".