1301278863 has 16 divisors (see below), whose sum is σ = 1792627200. Its totient is φ = 839006496.

The previous prime is 1301278861. The next prime is 1301278871. The reversal of 1301278863 is 3688721031.

It is not a de Polignac number, because 1301278863 - 2¹ = 1301278861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301278861) 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, 16563 + ... + 53636.

It is an arithmetic number, because the mean of its divisors is an integer number (112039200).

Almost surely, 2^1301278863 is an apocalyptic number.

1301278863 is a deficient number, since it is larger than the sum of its proper divisors (491348337).

1301278863 is a wasteful number, since it uses less digits than its factorization.

1301278863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70406.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1301278863 is about 36073.2430341382. The cubic root of 1301278863 is about 1091.7506483288.

Adding to 1301278863 its reverse (3688721031), we get a palindrome (4989999894).

The spelling of 1301278863 in words is "one billion, three hundred one million, two hundred seventy-eight thousand, eight hundred sixty-three".