1271481 has 16 divisors (see below), whose sum is σ = 1819584. Its totient is φ = 786944.

The previous prime is 1271471. The next prime is 1271483. The reversal of 1271481 is 1841721.

It is a cyclic number.

It is not a de Polignac number, because 1271481 - 2⁵ = 1271449 is a prime.

It is a super-2 number, since 2×1271481² = 3233327866722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1271483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5341 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (113724).

2^1271481 is an apocalyptic number.

It is an amenable number.

1271481 is a deficient number, since it is larger than the sum of its proper divisors (548103).

1271481 is a wasteful number, since it uses less digits than its factorization.

1271481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its digits is 448, while the sum is 24.

The square root of 1271481 is about 1127.5996630010. The cubic root of 1271481 is about 108.3352920093.

The spelling of 1271481 in words is "one million, two hundred seventy-one thousand, four hundred eighty-one".