11681272 has 16 divisors (see below), whose sum is σ = 21951000. Its totient is φ = 5827680.

The previous prime is 11681237. The next prime is 11681273. The reversal of 11681272 is 27218611.

It is a self number, because there is not a number n which added to its sum of digits gives 11681272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11681273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2979 + ... + 5677.

Almost surely, 2^11681272 is an apocalyptic number.

It is an amenable number.

11681272 is a deficient number, since it is larger than the sum of its proper divisors (10269728).

11681272 is a wasteful number, since it uses less digits than its factorization.

11681272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246 (or 3242 counting only the distinct ones).

The product of its digits is 1344, while the sum is 28.

The square root of 11681272 is about 3417.7875884847. The cubic root of 11681272 is about 226.8976749061.

Adding to 11681272 its reverse (27218611), we get a palindrome (38899883).

The spelling of 11681272 in words is "eleven million, six hundred eighty-one thousand, two hundred seventy-two".