1306213227 has 12 divisors (see below), whose sum is σ = 2058275544. Its totient is φ = 791644320.

The previous prime is 1306213187. The next prime is 1306213229. The reversal of 1306213227 is 7223126031.

1306213227 is a `hidden beast` number, since 1 + 3 + 0 + 621 + 32 + 2 + 7 = 666.

It is not a de Polignac number, because 1306213227 - 2²⁸ = 1037777771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1306213227.

It is not an unprimeable number, because it can be changed into a prime (1306213229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6596938 + ... + 6597135.

It is an arithmetic number, because the mean of its divisors is an integer number (171522962).

Almost surely, 2^1306213227 is an apocalyptic number.

1306213227 is a deficient number, since it is larger than the sum of its proper divisors (752062317).

1306213227 is a wasteful number, since it uses less digits than its factorization.

1306213227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13194090 (or 13194087 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1306213227 is about 36141.5720051024. The cubic root of 1306213227 is about 1093.1288566916.

Adding to 1306213227 its reverse (7223126031), we get a palindrome (8529339258).

The spelling of 1306213227 in words is "one billion, three hundred six million, two hundred thirteen thousand, two hundred twenty-seven".