142436 has 12 divisors (see below), whose sum is σ = 284928. Its totient is φ = 61032.

The previous prime is 142433. The next prime is 142453. The reversal of 142436 is 634241.

It is a happy number.

142436 is an admirable number.

It is a super-3 number, since 3×142436³ = 8669230727333568, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142433) by changing a digit.

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, 2516 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (23744).

2¹⁴²⁴³⁶ is an apocalyptic number.

It is an amenable number.

142436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142436 is a wasteful number, since it uses less digits than its factorization.

142436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5098 (or 5096 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 142436 is about 377.4069421725. The cubic root of 142436 is about 52.2243756133.

Adding to 142436 its reverse (634241), we get a palindrome (776677).

It can be divided in two parts, 14243 and 6, that multiplied together give a palindrome (85458).

The spelling of 142436 in words is "one hundred forty-two thousand, four hundred thirty-six".