1271241 has 16 divisors (see below), whose sum is σ = 1900800. Its totient is φ = 839664.

The previous prime is 1271239. The next prime is 1271251. The reversal of 1271241 is 1421721.

It is not a de Polignac number, because 1271241 - 2¹ = 1271239 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5200 + ... + 5438.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2^1271241 is an apocalyptic number.

It is an amenable number.

1271241 is a deficient number, since it is larger than the sum of its proper divisors (629559).

1271241 is a wasteful number, since it uses less digits than its factorization.

1271241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 439 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 1271241 is about 1127.4932372303. The cubic root of 1271241 is about 108.3284752588.

Adding to 1271241 its reverse (1421721), we get a palindrome (2692962).

It can be divided in two parts, 12 and 71241, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 1271241 in words is "one million, two hundred seventy-one thousand, two hundred forty-one".