111141601 has 8 divisors (see below), whose sum is σ = 115643880. Its totient is φ = 106684032.

The previous prime is 111141593. The next prime is 111141617. The reversal of 111141601 is 106141111.

It can be written as a sum of positive squares in 4 ways, for example, as 14630625 + 96510976 = 3825^2 + 9824^2 .

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 111141601 - 2³ = 111141593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111147601) 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, 6060 + ... + 16093.

It is an arithmetic number, because the mean of its divisors is an integer number (14455485).

Almost surely, 2^111141601 is an apocalyptic number.

It is an amenable number.

111141601 is a deficient number, since it is larger than the sum of its proper divisors (4502279).

111141601 is a wasteful number, since it uses less digits than its factorization.

111141601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22355.

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

The square root of 111141601 is about 10542.3716971088. The cubic root of 111141601 is about 480.7938267766.

Adding to 111141601 its reverse (106141111), we get a palindrome (217282712).

The spelling of 111141601 in words is "one hundred eleven million, one hundred forty-one thousand, six hundred one".