111540006 has 24 divisors (see below), whose sum is σ = 245076624. Its totient is φ = 36655920.

The previous prime is 111539999. The next prime is 111540007. The reversal of 111540006 is 600045111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111540007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42361 + ... + 44916.

It is an arithmetic number, because the mean of its divisors is an integer number (10211526).

Almost surely, 2^111540006 is an apocalyptic number.

111540006 is an abundant number, since it is smaller than the sum of its proper divisors (133536618).

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

111540006 is a wasteful number, since it uses less digits than its factorization.

111540006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87356 (or 87353 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 111540006 is about 10561.2502100840. The cubic root of 111540006 is about 481.3676360318.

Adding to 111540006 its reverse (600045111), we get a palindrome (711585117).

The spelling of 111540006 in words is "one hundred eleven million, five hundred forty thousand, six".