143949 has 8 divisors (see below), whose sum is σ = 206752. Its totient is φ = 88560.

The previous prime is 143947. The next prime is 143953. The reversal of 143949 is 949341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143949 - 2¹ = 143947 is a prime.

It is an Ulam number.

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 143949.

It is not an unprimeable number, because it can be changed into a prime (143947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1807 + ... + 1884.

It is an arithmetic number, because the mean of its divisors is an integer number (25844).

2¹⁴³⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

143949 is a deficient number, since it is larger than the sum of its proper divisors (62803).

143949 is a wasteful number, since it uses less digits than its factorization.

143949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707.

The product of its digits is 3888, while the sum is 30.

The square root of 143949 is about 379.4061148690. The cubic root of 143949 is about 52.4086392919.

The spelling of 143949 in words is "one hundred forty-three thousand, nine hundred forty-nine".