1271894 has 24 divisors (see below), whose sum is σ = 2134512. Its totient is φ = 567840.

The previous prime is 1271849. The next prime is 1271903. The reversal of 1271894 is 4981721.

It is a self number, because there is not a number n which added to its sum of digits gives 1271894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17879 + ... + 17949.

It is an arithmetic number, because the mean of its divisors is an integer number (88938).

2^1271894 is an apocalyptic number.

1271894 is a deficient number, since it is larger than the sum of its proper divisors (862618).

1271894 is a wasteful number, since it uses less digits than its factorization.

1271894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 139 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 1271894 is about 1127.7827805034. The cubic root of 1271894 is about 108.3470204929.

The spelling of 1271894 in words is "one million, two hundred seventy-one thousand, eight hundred ninety-four".