117662065 has 4 divisors (see below), whose sum is σ = 141194484. Its totient is φ = 94129648.

The previous prime is 117662063. The next prime is 117662093. The reversal of 117662065 is 560266711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560266711 = 307 ⋅1824973.

It can be written as a sum of positive squares in 2 ways, for example, as 16136289 + 101525776 = 4017^2 + 10076^2 .

It is a cyclic number.

It is not a de Polignac number, because 117662065 - 2¹ = 117662063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117662065.

It is not an unprimeable number, because it can be changed into a prime (117662063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11766202 + ... + 11766211.

It is an arithmetic number, because the mean of its divisors is an integer number (35298621).

Almost surely, 2^117662065 is an apocalyptic number.

It is an amenable number.

117662065 is a deficient number, since it is larger than the sum of its proper divisors (23532419).

117662065 is an equidigital number, since it uses as much as digits as its factorization.

117662065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23532418.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 117662065 is about 10847.2146194311. The cubic root of 117662065 is about 490.0181376043.

It can be divided in two parts, 11766 and 2065, that added together give a palindrome (13831).

The spelling of 117662065 in words is "one hundred seventeen million, six hundred sixty-two thousand, sixty-five".