11051172 has 108 divisors (see below), whose sum is σ = 31951920. Its totient is φ = 3215520.

The previous prime is 11051171. The next prime is 11051177. The reversal of 11051172 is 27115011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11051171) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 187279 + ... + 187337.

Almost surely, 2^11051172 is an apocalyptic number.

11051172 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 11051172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15975960).

11051172 is an abundant number, since it is smaller than the sum of its proper divisors (20900748).

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

11051172 is a wasteful number, since it uses less digits than its factorization.

11051172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 11051172 is about 3324.3303084982. The cubic root of 11051172 is about 222.7423408432.

Adding to 11051172 its reverse (27115011), we get a palindrome (38166183).

The spelling of 11051172 in words is "eleven million, fifty-one thousand, one hundred seventy-two".