1265255 has 8 divisors (see below), whose sum is σ = 1544400. Its totient is φ = 994816.

The previous prime is 1265249. The next prime is 1265273. The reversal of 1265255 is 5525621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1265255 - 2¹⁰ = 1264231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1850 + ... + 2439.

It is an arithmetic number, because the mean of its divisors is an integer number (193050).

2^1265255 is an apocalyptic number.

1265255 is a deficient number, since it is larger than the sum of its proper divisors (279145).

1265255 is an equidigital number, since it uses as much as digits as its factorization.

1265255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353.

The product of its digits is 3000, while the sum is 26.

The square root of 1265255 is about 1124.8355435351. The cubic root of 1265255 is about 108.1581758599.

The spelling of 1265255 in words is "one million, two hundred sixty-five thousand, two hundred fifty-five".