1255671 has 24 divisors (see below), whose sum is σ = 1993680. Its totient is φ = 758016.

The previous prime is 1255663. The next prime is 1255679. The reversal of 1255671 is 1765521.

It is an interprime number because it is at equal distance from previous prime (1255663) and next prime (1255679).

It is not a de Polignac number, because 1255671 - 2³ = 1255663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4296 + ... + 4578.

It is an arithmetic number, because the mean of its divisors is an integer number (83070).

2^1255671 is an apocalyptic number.

1255671 is a deficient number, since it is larger than the sum of its proper divisors (738009).

1255671 is a wasteful number, since it uses less digits than its factorization.

1255671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 332 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 1255671 is about 1120.5672670572. The cubic root of 1255671 is about 107.8843927547.

The spelling of 1255671 in words is "one million, two hundred fifty-five thousand, six hundred seventy-one".