11142535 has 4 divisors (see below), whose sum is σ = 13371048. Its totient is φ = 8914024.

The previous prime is 11142491. The next prime is 11142539. The reversal of 11142535 is 53524111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11142535 - 2¹⁵ = 11109767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142539) 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, 1114249 + ... + 1114258.

It is an arithmetic number, because the mean of its divisors is an integer number (3342762).

Almost surely, 2^11142535 is an apocalyptic number.

11142535 is a deficient number, since it is larger than the sum of its proper divisors (2228513).

11142535 is an equidigital number, since it uses as much as digits as its factorization.

11142535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228512.

The product of its digits is 600, while the sum is 22.

The square root of 11142535 is about 3338.0435886908. The cubic root of 11142535 is about 223.3544805598.

Adding to 11142535 its reverse (53524111), we get a palindrome (64666646).

The spelling of 11142535 in words is "eleven million, one hundred forty-two thousand, five hundred thirty-five".