1272331132 has 12 divisors (see below), whose sum is σ = 2226951720. Its totient is φ = 636059216.

The previous prime is 1272331061. The next prime is 1272331133. The reversal of 1272331132 is 2311332721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1272331097 and 1272331106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272331133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4323 + ... + 50629.

It is an arithmetic number, because the mean of its divisors is an integer number (185579310).

Almost surely, 2^1272331132 is an apocalyptic number.

It is an amenable number.

1272331132 is a deficient number, since it is larger than the sum of its proper divisors (954620588).

1272331132 is a wasteful number, since it uses less digits than its factorization.

1272331132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53180 (or 53178 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 1272331132 is about 35669.7509382950. The cubic root of 1272331132 is about 1083.5943151793.

Adding to 1272331132 its reverse (2311332721), we get a palindrome (3583663853).

The spelling of 1272331132 in words is "one billion, two hundred seventy-two million, three hundred thirty-one thousand, one hundred thirty-two".