143343873 has 6 divisors (see below), whose sum is σ = 207052274. Its totient is φ = 95562576.

The previous prime is 143343869. The next prime is 143343877. The reversal of 143343873 is 378343341.

It is an interprime number because it is at equal distance from previous prime (143343869) and next prime (143343877).

It can be written as a sum of positive squares in only one way, i.e., 132434064 + 10909809 = 11508^2 + 3303^2 .

It is not a de Polignac number, because 143343873 - 2² = 143343869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143343877) 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, 7963540 + ... + 7963557.

Almost surely, 2^143343873 is an apocalyptic number.

It is an amenable number.

143343873 is a deficient number, since it is larger than the sum of its proper divisors (63708401).

143343873 is a wasteful number, since it uses less digits than its factorization.

143343873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15927103 (or 15927100 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 143343873 is about 11972.6301621657. The cubic root of 143343873 is about 523.3509837133.

The spelling of 143343873 in words is "one hundred forty-three million, three hundred forty-three thousand, eight hundred seventy-three".