143656 has 8 divisors (see below), whose sum is σ = 269370. Its totient is φ = 71824.

The previous prime is 143653. The next prime is 143669. The reversal of 143656 is 656341.

It can be written as a sum of positive squares in only one way, i.e., 72900 + 70756 = 270^2 + 266^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×143656³ = 8893906585333248, which contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 143656.

It is not an unprimeable number, because it can be changed into a prime (143651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8971 + ... + 8986.

2¹⁴³⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

143656 is a deficient number, since it is larger than the sum of its proper divisors (125714).

143656 is a wasteful number, since it uses less digits than its factorization.

143656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17963 (or 17959 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 143656 is about 379.0197884016. The cubic root of 143656 is about 52.3730568711.

Adding to 143656 its reverse (656341), we get a palindrome (799997).

The spelling of 143656 in words is "one hundred forty-three thousand, six hundred fifty-six".