117478459 has 8 divisors (see below), whose sum is σ = 135242208. Its totient is φ = 99960000.

The previous prime is 117478447. The next prime is 117478469. The reversal of 117478459 is 954874711.

It is a happy number.

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

It is not a de Polignac number, because 117478459 - 2⁷ = 117478331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117478409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60292 + ... + 62209.

It is an arithmetic number, because the mean of its divisors is an integer number (16905276).

Almost surely, 2^117478459 is an apocalyptic number.

117478459 is a deficient number, since it is larger than the sum of its proper divisors (17763749).

117478459 is a wasteful number, since it uses less digits than its factorization.

117478459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122645.

The product of its digits is 282240, while the sum is 46.

The square root of 117478459 is about 10838.7480365585. The cubic root of 117478459 is about 489.7631216571.

The spelling of 117478459 in words is "one hundred seventeen million, four hundred seventy-eight thousand, four hundred fifty-nine".