111138001 has 8 divisors (see below), whose sum is σ = 124891200. Its totient is φ = 98128272.

The previous prime is 111137989. The next prime is 111138017. The reversal of 111138001 is 100831111.

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

It is a cyclic number.

It is not a de Polignac number, because 111138001 - 2⁵ = 111137969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111138901) 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, 185551 + ... + 186148.

It is an arithmetic number, because the mean of its divisors is an integer number (15611400).

Almost surely, 2^111138001 is an apocalyptic number.

It is an amenable number.

111138001 is a deficient number, since it is larger than the sum of its proper divisors (13753199).

111138001 is a wasteful number, since it uses less digits than its factorization.

111138001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371735.

The product of its (nonzero) digits is 24, while the sum is 16.

The square root of 111138001 is about 10542.2009561571. The cubic root of 111138001 is about 480.7886355717.

Adding to 111138001 its reverse (100831111), we get a palindrome (211969112).

The spelling of 111138001 in words is "one hundred eleven million, one hundred thirty-eight thousand, one".