111687242 has 8 divisors (see below), whose sum is σ = 169096896. Its totient is φ = 55321612.

The previous prime is 111687227. The next prime is 111687259. The reversal of 111687242 is 242786111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 111687199 and 111687208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260738 + ... + 261165.

It is an arithmetic number, because the mean of its divisors is an integer number (21137112).

Almost surely, 2^111687242 is an apocalyptic number.

111687242 is a deficient number, since it is larger than the sum of its proper divisors (57409654).

111687242 is a wasteful number, since it uses less digits than its factorization.

111687242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522012.

The product of its digits is 5376, while the sum is 32.

The square root of 111687242 is about 10568.2184875219. The cubic root of 111687242 is about 481.5793492551.

The spelling of 111687242 in words is "one hundred eleven million, six hundred eighty-seven thousand, two hundred forty-two".