11001272 has 8 divisors (see below), whose sum is σ = 20627400. Its totient is φ = 5500632.

The previous prime is 11001269. The next prime is 11001281. The reversal of 11001272 is 27210011.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687572 + ... + 687587.

It is an arithmetic number, because the mean of its divisors is an integer number (2578425).

Almost surely, 2^11001272 is an apocalyptic number.

It is an amenable number.

11001272 is a deficient number, since it is larger than the sum of its proper divisors (9626128).

11001272 is a wasteful number, since it uses less digits than its factorization.

11001272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375165 (or 1375161 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 11001272 is about 3316.8165460272. The cubic root of 11001272 is about 222.4065811589.

Adding to 11001272 its reverse (27210011), we get a palindrome (38211283).

The spelling of 11001272 in words is "eleven million, one thousand, two hundred seventy-two".