117285078 has 32 divisors (see below), whose sum is σ = 240371712. Its totient is φ = 38136800.

The previous prime is 117285071. The next prime is 117285101. The reversal of 117285078 is 870582711.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117285071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59773 + ... + 61703.

It is an arithmetic number, because the mean of its divisors is an integer number (7511616).

Almost surely, 2^117285078 is an apocalyptic number.

117285078 is an abundant number, since it is smaller than the sum of its proper divisors (123086634).

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

117285078 is a wasteful number, since it uses less digits than its factorization.

117285078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180.

The product of its (nonzero) digits is 31360, while the sum is 39.

The square root of 117285078 is about 10829.8235442689. The cubic root of 117285078 is about 489.4942414488.

The spelling of 117285078 in words is "one hundred seventeen million, two hundred eighty-five thousand, seventy-eight".