1253871 has 12 divisors (see below), whose sum is σ = 1827072. Its totient is φ = 828576.

The previous prime is 1253851. The next prime is 1253887. The reversal of 1253871 is 1783521.

It is not a de Polignac number, because 1253871 - 2⁵ = 1253839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 595 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (152256).

2^1253871 is an apocalyptic number.

1253871 is a deficient number, since it is larger than the sum of its proper divisors (573201).

1253871 is a wasteful number, since it uses less digits than its factorization.

1253871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1227 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1253871 is about 1119.7638143823. The cubic root of 1253871 is about 107.8328174689.

The spelling of 1253871 in words is "one million, two hundred fifty-three thousand, eight hundred seventy-one".