117578105 has 8 divisors (see below), whose sum is σ = 142464192. Its totient is φ = 93148848.

The previous prime is 117578101. The next prime is 117578117. The reversal of 117578105 is 501875711.

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 117578105 - 2² = 117578101 is a prime.

It is a super-2 number, since 2×117578105² = 27649221550782050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117578101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113639 + ... + 114668.

It is an arithmetic number, because the mean of its divisors is an integer number (17808024).

Almost surely, 2^117578105 is an apocalyptic number.

It is an amenable number.

117578105 is a deficient number, since it is larger than the sum of its proper divisors (24886087).

117578105 is a wasteful number, since it uses less digits than its factorization.

117578105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228415.

The product of its (nonzero) digits is 9800, while the sum is 35.

The square root of 117578105 is about 10843.3438108362. The cubic root of 117578105 is about 489.9015559556.

The spelling of 117578105 in words is "one hundred seventeen million, five hundred seventy-eight thousand, one hundred five".