111228664 has 8 divisors (see below), whose sum is σ = 208553760. Its totient is φ = 55614328.

The previous prime is 111228661. The next prime is 111228673. The reversal of 111228664 is 466822111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111228661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951784 + ... + 6951799.

It is an arithmetic number, because the mean of its divisors is an integer number (26069220).

Almost surely, 2^111228664 is an apocalyptic number.

It is an amenable number.

111228664 is a deficient number, since it is larger than the sum of its proper divisors (97325096).

111228664 is a wasteful number, since it uses less digits than its factorization.

111228664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13903589 (or 13903585 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 111228664 is about 10546.5000829659. The cubic root of 111228664 is about 480.9193376178.

The spelling of 111228664 in words is "one hundred eleven million, two hundred twenty-eight thousand, six hundred sixty-four".