11242537 has 4 divisors (see below), whose sum is σ = 11249280. Its totient is φ = 11235796.

The previous prime is 11242531. The next prime is 11242549. The reversal of 11242537 is 73524211.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11242537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11242531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164 + ... + 4882.

It is an arithmetic number, because the mean of its divisors is an integer number (2812320).

Almost surely, 2^11242537 is an apocalyptic number.

It is an amenable number.

11242537 is a deficient number, since it is larger than the sum of its proper divisors (6743).

11242537 is an equidigital number, since it uses as much as digits as its factorization.

11242537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742.

The product of its digits is 1680, while the sum is 25.

The square root of 11242537 is about 3352.9892633291. The cubic root of 11242537 is about 224.0206786288.

Adding to 11242537 its reverse (73524211), we get a palindrome (84766748).

The spelling of 11242537 in words is "eleven million, two hundred forty-two thousand, five hundred thirty-seven".