111742140 has 48 divisors (see below), whose sum is σ = 314260128. Its totient is φ = 29666304.

The previous prime is 111742117. The next prime is 111742177. The reversal of 111742140 is 41247111.

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 15 ways as a sum of consecutive naturals, for example, 9984 + ... + 17976.

It is an arithmetic number, because the mean of its divisors is an integer number (6547086).

Almost surely, 2^111742140 is an apocalyptic number.

111742140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111742140 is an abundant number, since it is smaller than the sum of its proper divisors (202517988).

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

111742140 is a wasteful number, since it uses less digits than its factorization.

111742140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8238 (or 8236 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 111742140 is about 10570.8154841526. The cubic root of 111742140 is about 481.6582404282.

Adding to 111742140 its reverse (41247111), we get a palindrome (152989251).

The spelling of 111742140 in words is "one hundred eleven million, seven hundred forty-two thousand, one hundred forty".