115123171 has 4 divisors (see below), whose sum is σ = 115533144. Its totient is φ = 114713200.

The previous prime is 115123159. The next prime is 115123199. The reversal of 115123171 is 171321511.

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 115123171 - 2²¹ = 113026019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115123111) 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, 204565 + ... + 205126.

It is an arithmetic number, because the mean of its divisors is an integer number (28883286).

Almost surely, 2^115123171 is an apocalyptic number.

115123171 is a deficient number, since it is larger than the sum of its proper divisors (409973).

115123171 is an equidigital number, since it uses as much as digits as its factorization.

115123171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409972.

The product of its digits is 210, while the sum is 22.

The square root of 115123171 is about 10729.5466353430. The cubic root of 115123171 is about 486.4679667253.

Adding to 115123171 its reverse (171321511), we get a palindrome (286444682).

The spelling of 115123171 in words is "one hundred fifteen million, one hundred twenty-three thousand, one hundred seventy-one".