523136 has 32 divisors (see below), whose sum is σ = 1075080. Its totient is φ = 253440.

The previous prime is 523129. The next prime is 523169. The reversal of 523136 is 631325.

It is a tau number, because it is divible by the number of its divisors (32).

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

523136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 7775 + ... + 7841.

2⁵²³¹³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537540).

523136 is an abundant number, since it is smaller than the sum of its proper divisors (551944).

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

523136 is an equidigital number, since it uses as much as digits as its factorization.

523136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 130 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 523136 is about 723.2814113469. The cubic root of 523136 is about 80.5758450852.

The spelling of 523136 in words is "five hundred twenty-three thousand, one hundred thirty-six".