11951272 has 16 divisors (see below), whose sum is σ = 23727060. Its totient is φ = 5624064.

The previous prime is 11951263. The next prime is 11951287. The reversal of 11951272 is 27215911.

11951272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10797796 + 1153476 = 3286^2 + 1074^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11951272.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43803 + ... + 44074.

Almost surely, 2^11951272 is an apocalyptic number.

It is an amenable number.

11951272 is a deficient number, since it is larger than the sum of its proper divisors (11775788).

11951272 is a wasteful number, since it uses less digits than its factorization.

11951272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87900 (or 87896 counting only the distinct ones).

The product of its digits is 1260, while the sum is 28.

The square root of 11951272 is about 3457.0611796727. The cubic root of 11951272 is about 228.6325412483.

The spelling of 11951272 in words is "eleven million, nine hundred fifty-one thousand, two hundred seventy-two".