117275478 has 32 divisors (see below), whose sum is σ = 245397600. Its totient is φ = 37314816.

The previous prime is 117275471. The next prime is 117275519. The reversal of 117275478 is 874572711.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117275471) 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 15 ways as a sum of consecutive naturals, for example, 11700 + ... + 19272.

It is an arithmetic number, because the mean of its divisors is an integer number (7668675).

Almost surely, 2^117275478 is an apocalyptic number.

117275478 is an abundant number, since it is smaller than the sum of its proper divisors (128122122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117275478 is a wasteful number, since it uses less digits than its factorization.

117275478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7696.

The product of its digits is 109760, while the sum is 42.

The square root of 117275478 is about 10829.3803146810. The cubic root of 117275478 is about 489.4808857488.

It can be divided in two parts, 11727 and 5478, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 117275478 in words is "one hundred seventeen million, two hundred seventy-five thousand, four hundred seventy-eight".