523105117 has 4 divisors (see below), whose sum is σ = 526129020. Its totient is φ = 520081216.

The previous prime is 523105111. The next prime is 523105133. The reversal of 523105117 is 711501325.

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 204089796 + 319015321 = 14286^2 + 17861^2 .

It is a cyclic number.

It is not a de Polignac number, because 523105117 - 2³ = 523105109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523105091 and 523105100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523105111) 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, 1511692 + ... + 1512037.

It is an arithmetic number, because the mean of its divisors is an integer number (131532255).

Almost surely, 2^523105117 is an apocalyptic number.

It is an amenable number.

523105117 is a deficient number, since it is larger than the sum of its proper divisors (3023903).

523105117 is a wasteful number, since it uses less digits than its factorization.

523105117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023902.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 523105117 is about 22871.4913593320. The cubic root of 523105117 is about 805.7425947282.

The spelling of 523105117 in words is "five hundred twenty-three million, one hundred five thousand, one hundred seventeen".