11272539 has 4 divisors (see below), whose sum is σ = 15030056. Its totient is φ = 7515024.

The previous prime is 11272523. The next prime is 11272559. The reversal of 11272539 is 93527211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11272539 - 2⁴ = 11272523 is a prime.

It is a Duffinian 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, 1878754 + ... + 1878759.

It is an arithmetic number, because the mean of its divisors is an integer number (3757514).

Almost surely, 2^11272539 is an apocalyptic number.

11272539 is a deficient number, since it is larger than the sum of its proper divisors (3757517).

11272539 is an equidigital number, since it uses as much as digits as its factorization.

11272539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757516.

The product of its digits is 3780, while the sum is 30.

The square root of 11272539 is about 3357.4602008066. The cubic root of 11272539 is about 224.2197765905.

It can be divided in two parts, 11272 and 539, that added together give a palindrome (11811).

The spelling of 11272539 in words is "eleven million, two hundred seventy-two thousand, five hundred thirty-nine".