111557106 has 12 divisors (see below), whose sum is σ = 241707102. Its totient is φ = 37185696.

The previous prime is 111557101. The next prime is 111557119. The reversal of 111557106 is 601755111.

It is a happy number.

111557106 is a `hidden beast` number, since 1 + 1 + 1 + 557 + 106 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103856481 + 7700625 = 10191^2 + 2775^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111557106.

It is not an unprimeable number, because it can be changed into a prime (111557101) 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, 3098791 + ... + 3098826.

Almost surely, 2^111557106 is an apocalyptic number.

111557106 is an abundant number, since it is smaller than the sum of its proper divisors (130149996).

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

111557106 is a wasteful number, since it uses less digits than its factorization.

111557106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197625 (or 6197622 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 27.

The square root of 111557106 is about 10562.0597423041. The cubic root of 111557106 is about 481.3922339803.

The spelling of 111557106 in words is "one hundred eleven million, five hundred fifty-seven thousand, one hundred six".