523116 has 36 divisors (see below), whose sum is σ = 1443624. Its totient is φ = 158400.

The previous prime is 523109. The next prime is 523129. The reversal of 523116 is 611325.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265 + ... + 1056.

2⁵²³¹¹⁶ is an apocalyptic number.

It is an amenable number.

523116 is an abundant number, since it is smaller than the sum of its proper divisors (920508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523116 is a wasteful number, since it uses less digits than its factorization.

523116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1337 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 523116 is about 723.2675853375. The cubic root of 523116 is about 80.5748182411.

Subtracting 523116 from its reverse (611325), we obtain a square (88209 = 297²).

The spelling of 523116 in words is "five hundred twenty-three thousand, one hundred sixteen".