1272136 has 8 divisors (see below), whose sum is σ = 2385270. Its totient is φ = 636064.

The previous prime is 1272133. The next prime is 1272151. The reversal of 1272136 is 6312721.

It can be written as a sum of positive squares in only one way, i.e., 1012036 + 260100 = 1006^2 + 510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1272133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79501 + ... + 79516.

2^1272136 is an apocalyptic number.

It is an amenable number.

1272136 is a deficient number, since it is larger than the sum of its proper divisors (1113134).

1272136 is a wasteful number, since it uses less digits than its factorization.

1272136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159023 (or 159019 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 1272136 is about 1127.8900655649. The cubic root of 1272136 is about 108.3538916934.

Adding to 1272136 its reverse (6312721), we get a palindrome (7584857).

The spelling of 1272136 in words is "one million, two hundred seventy-two thousand, one hundred thirty-six".