111651104 has 36 divisors (see below), whose sum is σ = 233523234. Its totient is φ = 52537344.

The previous prime is 111651101. The next prime is 111651143. The reversal of 111651104 is 401156111.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 93161104 + 18490000 = 9652^2 + 4300^2 .

It is not an unprimeable number, because it can be changed into a prime (111651101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3212 + ... + 15284.

Almost surely, 2^111651104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111651104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116761617).

111651104 is an abundant number, since it is smaller than the sum of its proper divisors (121872130).

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

111651104 is a wasteful number, since it uses less digits than its factorization.

111651104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12117 (or 12092 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 111651104 is about 10566.5086002899. The cubic root of 111651104 is about 481.5274030298.

The spelling of 111651104 in words is "one hundred eleven million, six hundred fifty-one thousand, one hundred four".