111228564 has 24 divisors (see below), whose sum is σ = 260856288. Its totient is φ = 36887200.

The previous prime is 111228547. The next prime is 111228571. The reversal of 111228564 is 465822111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21162 + ... + 25889.

It is an arithmetic number, because the mean of its divisors is an integer number (10869012).

Almost surely, 2^111228564 is an apocalyptic number.

It is an amenable number.

111228564 is an abundant number, since it is smaller than the sum of its proper divisors (149627724).

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

111228564 is a wasteful number, since it uses less digits than its factorization.

111228564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47255 (or 47253 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 111228564 is about 10546.4953420556. The cubic root of 111228564 is about 480.9191934944.

The spelling of 111228564 in words is "one hundred eleven million, two hundred twenty-eight thousand, five hundred sixty-four".