117523115 has 4 divisors (see below), whose sum is σ = 141027744. Its totient is φ = 94018488.

The previous prime is 117523069. The next prime is 117523117. The reversal of 117523115 is 511325711.

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

It is a cyclic number.

It is not a de Polignac number, because 117523115 - 2⁸ = 117522859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117523117) 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, 11752307 + ... + 11752316.

It is an arithmetic number, because the mean of its divisors is an integer number (35256936).

Almost surely, 2^117523115 is an apocalyptic number.

117523115 is a deficient number, since it is larger than the sum of its proper divisors (23504629).

117523115 is an equidigital number, since it uses as much as digits as its factorization.

117523115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23504628.

The product of its digits is 1050, while the sum is 26.

The square root of 117523115 is about 10840.8078573509. The cubic root of 117523115 is about 489.8251701709.

Adding to 117523115 its reverse (511325711), we get a palindrome (628848826).

The spelling of 117523115 in words is "one hundred seventeen million, five hundred twenty-three thousand, one hundred fifteen".