117415621 has 8 divisors (see below), whose sum is σ = 122629824. Its totient is φ = 112210560.

The previous prime is 117415559. The next prime is 117415633. The reversal of 117415621 is 126514711.

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

It is not a de Polignac number, because 117415621 - 2²⁵ = 83861189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117415621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117415121) 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, 45126 + ... + 47656.

It is an arithmetic number, because the mean of its divisors is an integer number (15328728).

Almost surely, 2^117415621 is an apocalyptic number.

It is an amenable number.

117415621 is a deficient number, since it is larger than the sum of its proper divisors (5214203).

117415621 is a wasteful number, since it uses less digits than its factorization.

117415621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571.

The product of its digits is 1680, while the sum is 28.

The square root of 117415621 is about 10835.8488822981. The cubic root of 117415621 is about 489.6757830246.

The spelling of 117415621 in words is "one hundred seventeen million, four hundred fifteen thousand, six hundred twenty-one".