142522 has 4 divisors (see below), whose sum is σ = 213786. Its totient is φ = 71260.

The previous prime is 142501. The next prime is 142529. The reversal of 142522 is 225241.

142522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 123201 + 19321 = 351^2 + 139^2 .

It is a d-powerful number, because it can be written as 1 + 4 + 5⁵ + 2⁷ + 2¹³ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 142496 and 142505.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35629 + ... + 35632.

2¹⁴²⁵²² is an apocalyptic number.

142522 is a deficient number, since it is larger than the sum of its proper divisors (71264).

142522 is an equidigital number, since it uses as much as digits as its factorization.

142522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71263.

The product of its digits is 160, while the sum is 16.

The square root of 142522 is about 377.5208603508. The cubic root of 142522 is about 52.2348841755.

Adding to 142522 its reverse (225241), we get a palindrome (367763).

The spelling of 142522 in words is "one hundred forty-two thousand, five hundred twenty-two".