236142 has 16 divisors (see below), whose sum is σ = 524880. Its totient is φ = 78696.

The previous prime is 236129. The next prime is 236143. The reversal of 236142 is 241632.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 236142.

It is not an unprimeable number, because it can be changed into a prime (236143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (32805).

2²³⁶¹⁴² is an apocalyptic number.

236142 is an abundant number, since it is smaller than the sum of its proper divisors (288738).

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

236142 is a wasteful number, since it uses less digits than its factorization.

236142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384 (or 4378 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 236142 is about 485.9444412688. The cubic root of 236142 is about 61.8098579806.

Adding to 236142 its reverse (241632), we get a palindrome (477774).

It can be divided in two parts, 236 and 142, that added together give a triangular number (378 = T₂₇).

The spelling of 236142 in words is "two hundred thirty-six thousand, one hundred forty-two".