143712 has 36 divisors (see below), whose sum is σ = 409500. Its totient is φ = 47808.

The previous prime is 143711. The next prime is 143719. The reversal of 143712 is 217341.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39 + ... + 537.

It is an arithmetic number, because the mean of its divisors is an integer number (11375).

2¹⁴³⁷¹² is an apocalyptic number.

143712 is a gapful number since it is divisible by the number (12) 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 143712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204750).

143712 is an abundant number, since it is smaller than the sum of its proper divisors (265788).

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

143712 is a wasteful number, since it uses less digits than its factorization.

143712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 504 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 143712 is about 379.0936559744. The cubic root of 143712 is about 52.3798613442.

The spelling of 143712 in words is "one hundred forty-three thousand, seven hundred twelve", and thus it is an iban number.