1255071 has 4 divisors (see below), whose sum is σ = 1673432. Its totient is φ = 836712.

The previous prime is 1255069. The next prime is 1255081. The reversal of 1255071 is 1705521.

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

It is not a de Polignac number, because 1255071 - 2¹ = 1255069 is a prime.

It is a D-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 (1255021) 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, 209176 + ... + 209181.

It is an arithmetic number, because the mean of its divisors is an integer number (418358).

2^1255071 is an apocalyptic number.

1255071 is a deficient number, since it is larger than the sum of its proper divisors (418361).

1255071 is an equidigital number, since it uses as much as digits as its factorization.

1255071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418360.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 1255071 is about 1120.2995135231. The cubic root of 1255071 is about 107.8672064725.

It can be divided in two parts, 12550 and 71, that added together give a palindrome (12621).

The spelling of 1255071 in words is "one million, two hundred fifty-five thousand, seventy-one".