11142241 has 4 divisors (see below), whose sum is σ = 12155184. Its totient is φ = 10129300.

The previous prime is 11142223. The next prime is 11142247. The reversal of 11142241 is 14224111.

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.

It is a cyclic number.

It is not a de Polignac number, because 11142241 - 2¹¹ = 11140193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142247) 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, 506455 + ... + 506476.

It is an arithmetic number, because the mean of its divisors is an integer number (3038796).

Almost surely, 2^11142241 is an apocalyptic number.

11142241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11142241 is a deficient number, since it is larger than the sum of its proper divisors (1012943).

11142241 is a wasteful number, since it uses less digits than its factorization.

11142241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012942.

The product of its digits is 64, while the sum is 16.

The square root of 11142241 is about 3337.9995506291. Note that the first 3 decimals coincide. The cubic root of 11142241 is about 223.3525161117.

Adding to 11142241 its reverse (14224111), we get a palindrome (25366352).

It can be divided in two parts, 11 and 142241, that multiplied together give a palindrome (1564651).

The spelling of 11142241 in words is "eleven million, one hundred forty-two thousand, two hundred forty-one".