142520 has 32 divisors (see below), whose sum is σ = 367200. Its totient is φ = 48768.

The previous prime is 142501. The next prime is 142529. The reversal of 142520 is 25241.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 142495 and 142504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142529) by changing a digit.

142520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26 + ... + 534.

It is an arithmetic number, because the mean of its divisors is an integer number (11475).

2¹⁴²⁵²⁰ is an apocalyptic number.

142520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183600).

142520 is an abundant number, since it is smaller than the sum of its proper divisors (224680).

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

142520 is a wasteful number, since it uses less digits than its factorization.

142520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 142520 is about 377.5182114812. The cubic root of 142520 is about 52.2346398383.

Adding to 142520 its reverse (25241), we get a palindrome (167761).

The spelling of 142520 in words is "one hundred forty-two thousand, five hundred twenty".