142564 has 12 divisors (see below), whose sum is σ = 258300. Its totient is φ = 68768.

The previous prime is 142559. The next prime is 142567. The reversal of 142564 is 465241.

It can be written as a sum of positive squares in 2 ways, for example, as 116964 + 25600 = 342^2 + 160^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499 + ... + 730.

It is an arithmetic number, because the mean of its divisors is an integer number (21525).

2¹⁴²⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

142564 is a deficient number, since it is larger than the sum of its proper divisors (115736).

142564 is a wasteful number, since it uses less digits than its factorization.

142564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1260 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 142564 is about 377.5764823185. The cubic root of 142564 is about 52.2400147276.

The spelling of 142564 in words is "one hundred forty-two thousand, five hundred sixty-four".