117968523 has 4 divisors (see below), whose sum is σ = 157291368. Its totient is φ = 78645680.

The previous prime is 117968509. The next prime is 117968531. The reversal of 117968523 is 325869711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325869711 = 3 ⋅108623237.

It is a cyclic number.

It is not a de Polignac number, because 117968523 - 2¹⁶ = 117902987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117968563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19661418 + ... + 19661423.

It is an arithmetic number, because the mean of its divisors is an integer number (39322842).

Almost surely, 2^117968523 is an apocalyptic number.

117968523 is a deficient number, since it is larger than the sum of its proper divisors (39322845).

117968523 is an equidigital number, since it uses as much as digits as its factorization.

117968523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39322844.

The product of its digits is 90720, while the sum is 42.

The square root of 117968523 is about 10861.3315482035. The cubic root of 117968523 is about 490.4431961286.

The spelling of 117968523 in words is "one hundred seventeen million, nine hundred sixty-eight thousand, five hundred twenty-three".