1255943 has 8 divisors (see below), whose sum is σ = 1432368. Its totient is φ = 1090944.

The previous prime is 1255939. The next prime is 1255949. The reversal of 1255943 is 3495521.

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 1255943 - 2² = 1255939 is a prime.

It is an Ulam 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 (1255949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2621 + ... + 3062.

It is an arithmetic number, because the mean of its divisors is an integer number (179046).

2^1255943 is an apocalyptic number.

1255943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1255943 is a deficient number, since it is larger than the sum of its proper divisors (176425).

1255943 is a wasteful number, since it uses less digits than its factorization.

1255943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713.

The product of its digits is 5400, while the sum is 29.

The square root of 1255943 is about 1120.6886275857. The cubic root of 1255943 is about 107.8921820659.

It can be divided in two parts, 12 and 55943, that added together give a palindrome (55955).

The spelling of 1255943 in words is "one million, two hundred fifty-five thousand, nine hundred forty-three".