111144252 has 48 divisors (see below), whose sum is σ = 266740992. Its totient is φ = 36005760.

The previous prime is 111144239. The next prime is 111144277. The reversal of 111144252 is 252441111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61303 + ... + 63089.

It is an arithmetic number, because the mean of its divisors is an integer number (5557104).

Almost surely, 2^111144252 is an apocalyptic number.

111144252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111144252 is an abundant number, since it is smaller than the sum of its proper divisors (155596740).

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

111144252 is a wasteful number, since it uses less digits than its factorization.

111144252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1936 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 111144252 is about 10542.4974270805. The cubic root of 111144252 is about 480.7976494505.

Adding to 111144252 its reverse (252441111), we get a palindrome (363585363).

The spelling of 111144252 in words is "one hundred eleven million, one hundred forty-four thousand, two hundred fifty-two".