111641407 has 8 divisors (see below), whose sum is σ = 113669312. Its totient is φ = 109620000.

The previous prime is 111641389. The next prime is 111641419. The reversal of 111641407 is 704146111.

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 111641407 - 2¹⁵ = 111608639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111641507) 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, 44593 + ... + 47029.

It is an arithmetic number, because the mean of its divisors is an integer number (14208664).

Almost surely, 2^111641407 is an apocalyptic number.

111641407 is a deficient number, since it is larger than the sum of its proper divisors (2027905).

111641407 is an equidigital number, since it uses as much as digits as its factorization.

111641407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 111641407 is about 10566.0497348820. The cubic root of 111641407 is about 481.5134622618.

Adding to 111641407 its reverse (704146111), we get a palindrome (815787518).

The spelling of 111641407 in words is "one hundred eleven million, six hundred forty-one thousand, four hundred seven".