525142 has 8 divisors (see below), whose sum is σ = 793800. Its totient is φ = 260544.

The previous prime is 525137. The next prime is 525143. The reversal of 525142 is 241525.

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

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525143) by changing a digit.

525142 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667 + ... + 1222.

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

2⁵²⁵¹⁴² is an apocalyptic number.

525142 is a deficient number, since it is larger than the sum of its proper divisors (268658).

525142 is a wasteful number, since it uses less digits than its factorization.

525142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030.

The product of its digits is 400, while the sum is 19.

The square root of 525142 is about 724.6668199939. Note that the first 3 decimals coincide. The cubic root of 525142 is about 80.6787048795.

Adding to 525142 its reverse (241525), we get a palindrome (766667).

The spelling of 525142 in words is "five hundred twenty-five thousand, one hundred forty-two".