1255443 has 16 divisors (see below), whose sum is σ = 1929216. Its totient is φ = 711360.

The previous prime is 1255427. The next prime is 1255451. The reversal of 1255443 is 3445521.

It is not a de Polignac number, because 1255443 - 2⁴ = 1255427 is a prime.

It is a super-2 number, since 2×1255443² = 3152274252498, which contains 22 as substring.

1255443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1255453) 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, 3855 + ... + 4167.

It is an arithmetic number, because the mean of its divisors is an integer number (120576).

2^1255443 is an apocalyptic number.

1255443 is a deficient number, since it is larger than the sum of its proper divisors (673773).

1255443 is a wasteful number, since it uses less digits than its factorization.

1255443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

The product of its digits is 2400, while the sum is 24.

The square root of 1255443 is about 1120.4655282515. The cubic root of 1255443 is about 107.8778626126.

It can be divided in two parts, 12 and 55443, that added together give a palindrome (55455).

The spelling of 1255443 in words is "one million, two hundred fifty-five thousand, four hundred forty-three".