1255813367 has 4 divisors (see below), whose sum is σ = 1256381016. Its totient is φ = 1255245720.

The previous prime is 1255813357. The next prime is 1255813369. The reversal of 1255813367 is 7633185521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255813367 - 2¹² = 1255809271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255813369) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 280493 + ... + 284934.

It is an arithmetic number, because the mean of its divisors is an integer number (314095254).

Almost surely, 2^1255813367 is an apocalyptic number.

1255813367 is a deficient number, since it is larger than the sum of its proper divisors (567649).

1255813367 is an equidigital number, since it uses as much as digits as its factorization.

1255813367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567648.

The product of its digits is 151200, while the sum is 41.

The square root of 1255813367 is about 35437.4571181398. The cubic root of 1255813367 is about 1078.8846988346.

Adding to 1255813367 its reverse (7633185521), we get a palindrome (8888998888).

The spelling of 1255813367 in words is "one billion, two hundred fifty-five million, eight hundred thirteen thousand, three hundred sixty-seven".