111247742 has 16 divisors (see below), whose sum is σ = 170799840. Its totient is φ = 54324192.

The previous prime is 111247739. The next prime is 111247753. The reversal of 111247742 is 247742111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21983 + ... + 26565.

It is an arithmetic number, because the mean of its divisors is an integer number (10674990).

Almost surely, 2^111247742 is an apocalyptic number.

111247742 is a deficient number, since it is larger than the sum of its proper divisors (59552098).

111247742 is a wasteful number, since it uses less digits than its factorization.

111247742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867.

The product of its digits is 3136, while the sum is 29.

The square root of 111247742 is about 10547.4045148558. The cubic root of 111247742 is about 480.9468318933.

Adding to 111247742 its reverse (247742111), we get a palindrome (358989853).

The spelling of 111247742 in words is "one hundred eleven million, two hundred forty-seven thousand, seven hundred forty-two".