111540993 has 8 divisors (see below), whose sum is σ = 149197728. Its totient is φ = 74122464.

The previous prime is 111540937. The next prime is 111541009. The reversal of 111540993 is 399045111.

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

It is not a de Polignac number, because 111540993 - 2²⁴ = 94763777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111560993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58455 + ... + 60332.

It is an arithmetic number, because the mean of its divisors is an integer number (18649716).

Almost surely, 2^111540993 is an apocalyptic number.

It is an amenable number.

111540993 is a deficient number, since it is larger than the sum of its proper divisors (37656735).

111540993 is a wasteful number, since it uses less digits than its factorization.

111540993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119103.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 111540993 is about 10561.2969374031. The cubic root of 111540993 is about 481.3690558765.

The spelling of 111540993 in words is "one hundred eleven million, five hundred forty thousand, nine hundred ninety-three".