11535021 has 16 divisors (see below), whose sum is σ = 17200320. Its totient is φ = 7639920.

The previous prime is 11535001. The next prime is 11535037. The reversal of 11535021 is 12053511.

It is not a de Polignac number, because 11535021 - 2⁷ = 11534893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11534985 and 11535003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11535001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3091 + ... + 5711.

It is an arithmetic number, because the mean of its divisors is an integer number (1075020).

Almost surely, 2^11535021 is an apocalyptic number.

It is an amenable number.

11535021 is a deficient number, since it is larger than the sum of its proper divisors (5665299).

11535021 is a wasteful number, since it uses less digits than its factorization.

11535021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 11535021 is about 3396.3246311270. The cubic root of 11535021 is about 225.9467661185.

Adding to 11535021 its reverse (12053511), we get a palindrome (23588532).

The spelling of 11535021 in words is "eleven million, five hundred thirty-five thousand, twenty-one".