11272549 has 4 divisors (see below), whose sum is σ = 11440864. Its totient is φ = 11104236.

The previous prime is 11272523. The next prime is 11272559. The reversal of 11272549 is 94527211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94527211 = 29 ⋅3259559.

It is a cyclic number.

It is not a de Polignac number, because 11272549 - 2⁷ = 11272421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11272549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272519) 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, 84057 + ... + 84190.

It is an arithmetic number, because the mean of its divisors is an integer number (2860216).

Almost surely, 2^11272549 is an apocalyptic number.

It is an amenable number.

11272549 is a deficient number, since it is larger than the sum of its proper divisors (168315).

11272549 is an equidigital number, since it uses as much as digits as its factorization.

11272549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168314.

The product of its digits is 5040, while the sum is 31.

The square root of 11272549 is about 3357.4616900272. The cubic root of 11272549 is about 224.2198428931.

The spelling of 11272549 in words is "eleven million, two hundred seventy-two thousand, five hundred forty-nine".