1306255 has 4 divisors (see below), whose sum is σ = 1567512. Its totient is φ = 1045000.

The previous prime is 1306243. The next prime is 1306259. The reversal of 1306255 is 5526031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1306255 - 2⁵ = 1306223 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130621 + ... + 130630.

It is an arithmetic number, because the mean of its divisors is an integer number (391878).

2^1306255 is an apocalyptic number.

1306255 is a deficient number, since it is larger than the sum of its proper divisors (261257).

1306255 is an equidigital number, since it uses as much as digits as its factorization.

1306255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261256.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1306255 is about 1142.9151324573. The cubic root of 1306255 is about 109.3140509405.

The spelling of 1306255 in words is "one million, three hundred six thousand, two hundred fifty-five".