143964 has 48 divisors (see below), whose sum is σ = 394240. Its totient is φ = 45360.

The previous prime is 143953. The next prime is 143971. The reversal of 143964 is 469341.

143964 is nontrivially palindromic in base 8.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

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 143964.

It is an unprimeable number.

143964 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3327 + ... + 3369.

2¹⁴³⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197120).

143964 is an abundant number, since it is smaller than the sum of its proper divisors (250276).

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

143964 is a wasteful number, since it uses less digits than its factorization.

143964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 79 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 143964 is about 379.4258820903. The cubic root of 143964 is about 52.4104596178.

It can be divided in two parts, 14396 and 4, that added together give a square (14400 = 120²).

The spelling of 143964 in words is "one hundred forty-three thousand, nine hundred sixty-four".