11533172 has 24 divisors (see below), whose sum is σ = 23165184. Its totient is φ = 4921632.

The previous prime is 11533163. The next prime is 11533183. The reversal of 11533172 is 27133511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7013 + ... + 8499.

It is an arithmetic number, because the mean of its divisors is an integer number (965216).

Almost surely, 2^11533172 is an apocalyptic number.

It is an amenable number.

11533172 is an abundant number, since it is smaller than the sum of its proper divisors (11632012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11533172 is a wasteful number, since it uses less digits than its factorization.

11533172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775 (or 1773 counting only the distinct ones).

The product of its digits is 630, while the sum is 23.

The square root of 11533172 is about 3396.0524142009. The cubic root of 11533172 is about 225.9346928015.

Adding to 11533172 its reverse (27133511), we get a palindrome (38666683).

The spelling of 11533172 in words is "eleven million, five hundred thirty-three thousand, one hundred seventy-two".