523142 has 8 divisors (see below), whose sum is σ = 793800. Its totient is φ = 258544.

The previous prime is 523129. The next prime is 523169. The reversal of 523142 is 241325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 523142.

It is a congruent number.

It is an unprimeable number.

523142 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292 + ... + 1647.

It is an arithmetic number, because the mean of its divisors is an integer number (99225).

2⁵²³¹⁴² is an apocalyptic number.

523142 is a deficient number, since it is larger than the sum of its proper divisors (270658).

523142 is a wasteful number, since it uses less digits than its factorization.

523142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030.

The product of its digits is 240, while the sum is 17.

The square root of 523142 is about 723.2855590982. The cubic root of 523142 is about 80.5761531334.

Adding to 523142 its reverse (241325), we get a palindrome (764467).

The spelling of 523142 in words is "five hundred twenty-three thousand, one hundred forty-two".