1255447 has 4 divisors (see below), whose sum is σ = 1289416. Its totient is φ = 1221480.

The previous prime is 1255427. The next prime is 1255451. The reversal of 1255447 is 7445521.

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 1255447 - 2¹⁵ = 1222679 is a prime.

It is a super-2 number, since 2×1255447² = 3152294339618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255427) 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, 16929 + ... + 17002.

It is an arithmetic number, because the mean of its divisors is an integer number (322354).

2^1255447 is an apocalyptic number.

1255447 is a deficient number, since it is larger than the sum of its proper divisors (33969).

1255447 is an equidigital number, since it uses as much as digits as its factorization.

1255447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33968.

The product of its digits is 5600, while the sum is 28.

The square root of 1255447 is about 1120.4673132225. The cubic root of 1255447 is about 107.8779771833.

The spelling of 1255447 in words is "one million, two hundred fifty-five thousand, four hundred forty-seven".