11172252 has 72 divisors (see below), whose sum is σ = 32301696. Its totient is φ = 2942784.

The previous prime is 11172251. The next prime is 11172253. The reversal of 11172252 is 25227111.

It is an interprime number because it is at equal distance from previous prime (11172251) and next prime (11172253).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11172251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13803 + ... + 14589.

Almost surely, 2^11172252 is an apocalyptic number.

11172252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11172252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16150848).

11172252 is an abundant number, since it is smaller than the sum of its proper divisors (21129444).

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

11172252 is a wasteful number, since it uses less digits than its factorization.

11172252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 812 counting only the distinct ones).

The product of its digits is 280, while the sum is 21.

The square root of 11172252 is about 3342.4918848069. The cubic root of 11172252 is about 223.5528654930.

Adding to 11172252 its reverse (25227111), we get a palindrome (36399363).

The spelling of 11172252 in words is "eleven million, one hundred seventy-two thousand, two hundred fifty-two".