1271232 has 42 divisors (see below), whose sum is σ = 3645408. Its totient is φ = 423552.

The previous prime is 1271227. The next prime is 1271239. The reversal of 1271232 is 2321721.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 528 + ... + 1679.

2^1271232 is an apocalyptic number.

1271232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1271232 is an abundant number, since it is smaller than the sum of its proper divisors (2374176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271232 is a wasteful number, since it uses less digits than its factorization.

1271232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225 (or 2212 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 1271232 is about 1127.4892460684. The cubic root of 1271232 is about 108.3282196140.

Adding to 1271232 its reverse (2321721), we get a palindrome (3592953).

The spelling of 1271232 in words is "one million, two hundred seventy-one thousand, two hundred thirty-two".