143136 has 72 divisors (see below), whose sum is σ = 471744. Its totient is φ = 40320.

The previous prime is 143113. The next prime is 143137. The reversal of 143136 is 631341.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (143137) by changing a digit.

143136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 11 ways as a sum of consecutive naturals, for example, 1981 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (6552).

2¹⁴³¹³⁶ is an apocalyptic number.

143136 is a gapful number since it is divisible by the number (16) 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 143136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235872).

143136 is an abundant number, since it is smaller than the sum of its proper divisors (328608).

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

143136 is a wasteful number, since it uses less digits than its factorization.

143136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 83 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 143136 is about 378.3331864904. Note that the first 3 decimals coincide. The cubic root of 143136 is about 52.3097878674.

Adding to 143136 its reverse (631341), we get a palindrome (774477).

The spelling of 143136 in words is "one hundred forty-three thousand, one hundred thirty-six".