143158889 has 4 divisors (see below), whose sum is σ = 143533056. Its totient is φ = 142784724.

The previous prime is 143158871. The next prime is 143158891. The reversal of 143158889 is 988851341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988851341 = 137 ⋅7217893.

It is a cyclic number.

It is not a de Polignac number, because 143158889 - 2⁸ = 143158633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143158489) 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, 186509 + ... + 187274.

It is an arithmetic number, because the mean of its divisors is an integer number (35883264).

Almost surely, 2^143158889 is an apocalyptic number.

It is an amenable number.

143158889 is a deficient number, since it is larger than the sum of its proper divisors (374167).

143158889 is an equidigital number, since it uses as much as digits as its factorization.

143158889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374166.

The product of its digits is 276480, while the sum is 47.

The square root of 143158889 is about 11964.9023815491. The cubic root of 143158889 is about 523.1257601976.

The spelling of 143158889 in words is "one hundred forty-three million, one hundred fifty-eight thousand, eight hundred eighty-nine".