111365442 has 72 divisors (see below), whose sum is σ = 259603344. Its totient is φ = 35761824.

The previous prime is 111365413. The next prime is 111365447. The reversal of 111365442 is 244563111.

It is a happy number.

111365442 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 654 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (111365447) 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, 1525518 + ... + 1525590.

It is an arithmetic number, because the mean of its divisors is an integer number (3605602).

Almost surely, 2^111365442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111365442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129801672).

111365442 is an abundant number, since it is smaller than the sum of its proper divisors (148237902).

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

111365442 is an frugal number, since it uses more digits than its factorization.

111365442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 121 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 111365442 is about 10552.9826115653. The cubic root of 111365442 is about 481.1163858674.

The spelling of 111365442 in words is "one hundred eleven million, three hundred sixty-five thousand, four hundred forty-two".