143299 has 8 divisors (see below), whose sum is σ = 157472. Its totient is φ = 129600.

The previous prime is 143291. The next prime is 143329. The reversal of 143299 is 992341.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 143299 - 2³ = 143291 is a prime.

It is a Duffinian number.

143299 is a lucky number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (143291) 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, 874 + ... + 1024.

It is an arithmetic number, because the mean of its divisors is an integer number (19684).

2¹⁴³²⁹⁹ is an apocalyptic number.

143299 is a deficient number, since it is larger than the sum of its proper divisors (14173).

143299 is a wasteful number, since it uses less digits than its factorization.

143299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its digits is 1944, while the sum is 28.

The square root of 143299 is about 378.5485437827. The cubic root of 143299 is about 52.3296367312.

The spelling of 143299 in words is "one hundred forty-three thousand, two hundred ninety-nine".