143030399 has 4 divisors (see below), whose sum is σ = 149249136. Its totient is φ = 136811664.

The previous prime is 143030389. The next prime is 143030413. The reversal of 143030399 is 993030341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993030341 = 227 ⋅4374583.

It is a cyclic number.

It is not a de Polignac number, because 143030399 - 2⁴ = 143030383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143030389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3109334 + ... + 3109379.

It is an arithmetic number, because the mean of its divisors is an integer number (37312284).

Almost surely, 2^143030399 is an apocalyptic number.

143030399 is a deficient number, since it is larger than the sum of its proper divisors (6218737).

143030399 is an equidigital number, since it uses as much as digits as its factorization.

143030399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218736.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 143030399 is about 11959.5317216018. The cubic root of 143030399 is about 522.9692055957.

The spelling of 143030399 in words is "one hundred forty-three million, thirty thousand, three hundred ninety-nine".