117706145 has 4 divisors (see below), whose sum is σ = 141247380. Its totient is φ = 94164912.

The previous prime is 117706097. The next prime is 117706187. The reversal of 117706145 is 541607711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14500864 + 103205281 = 3808^2 + 10159^2 .

It is a cyclic number.

It is not a de Polignac number, because 117706145 - 2¹⁰ = 117705121 is a prime.

It is a super-2 number, since 2×117706145² = 27709473141522050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11770610 + ... + 11770619.

It is an arithmetic number, because the mean of its divisors is an integer number (35311845).

Almost surely, 2^117706145 is an apocalyptic number.

It is an amenable number.

117706145 is a deficient number, since it is larger than the sum of its proper divisors (23541235).

117706145 is an equidigital number, since it uses as much as digits as its factorization.

117706145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23541234.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 117706145 is about 10849.2462871851. The cubic root of 117706145 is about 490.0793221578.

The spelling of 117706145 in words is "one hundred seventeen million, seven hundred six thousand, one hundred forty-five".