11111152 has 20 divisors (see below), whose sum is σ = 23184280. Its totient is φ = 5128128.

The previous prime is 11111141. The next prime is 11111161. The reversal of 11111152 is 25111111.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26502 + ... + 26917.

It is an arithmetic number, because the mean of its divisors is an integer number (1159214).

Almost surely, 2^11111152 is an apocalyptic number.

It is an amenable number.

11111152 is an abundant number, since it is smaller than the sum of its proper divisors (12073128).

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

11111152 is a wasteful number, since it uses less digits than its factorization.

11111152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53440 (or 53434 counting only the distinct ones).

The product of its digits is 10, while the sum is 13.

The square root of 11111152 is about 3333.3394666610. The cubic root of 11111152 is about 223.1445904174.

Adding to 11111152 its reverse (25111111), we get a palindrome (36222263).

The spelling of 11111152 in words is "eleven million, one hundred eleven thousand, one hundred fifty-two".