117415021 has 8 divisors (see below), whose sum is σ = 122076864. Its totient is φ = 112838880.

The previous prime is 117415019. The next prime is 117415027. The reversal of 117415021 is 120514711.

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 117415021 - 2¹ = 117415019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117414983 and 117415001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117415027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18625 + ... + 24118.

It is an arithmetic number, because the mean of its divisors is an integer number (15259608).

Almost surely, 2^117415021 is an apocalyptic number.

It is an amenable number.

117415021 is a deficient number, since it is larger than the sum of its proper divisors (4661843).

117415021 is an equidigital number, since it uses as much as digits as its factorization.

117415021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42851.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 117415021 is about 10835.8211963838. The cubic root of 117415021 is about 489.6749489335.

Adding to 117415021 its reverse (120514711), we get a palindrome (237929732).

The spelling of 117415021 in words is "one hundred seventeen million, four hundred fifteen thousand, twenty-one".