117112001 has 4 divisors (see below), whose sum is σ = 117254100. Its totient is φ = 116969904.

The previous prime is 117111989. The next prime is 117112007. The reversal of 117112001 is 100211711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65286400 + 51825601 = 8080^2 + 7199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117112001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117112007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69806 + ... + 71463.

It is an arithmetic number, because the mean of its divisors is an integer number (29313525).

Almost surely, 2^117112001 is an apocalyptic number.

It is an amenable number.

117112001 is a deficient number, since it is larger than the sum of its proper divisors (142099).

117112001 is an equidigital number, since it uses as much as digits as its factorization.

117112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142098.

The product of its (nonzero) digits is 14, while the sum is 14.

The square root of 117112001 is about 10821.8298360305. The cubic root of 117112001 is about 489.2533415145.

Adding to 117112001 its reverse (100211711), we get a palindrome (217323712).

The spelling of 117112001 in words is "one hundred seventeen million, one hundred twelve thousand, one".