143221039 has 8 divisors (see below), whose sum is σ = 163311120. Its totient is φ = 124427136.

The previous prime is 143221027. The next prime is 143221063. The reversal of 143221039 is 930122341.

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 143221039 - 2¹⁷ = 143089967 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 (143228039) 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, 323809 + ... + 324250.

It is an arithmetic number, because the mean of its divisors is an integer number (20413890).

Almost surely, 2^143221039 is an apocalyptic number.

143221039 is a deficient number, since it is larger than the sum of its proper divisors (20090081).

143221039 is a wasteful number, since it uses less digits than its factorization.

143221039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648089.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 143221039 is about 11967.4992792981. The cubic root of 143221039 is about 523.2014512997.

The spelling of 143221039 in words is "one hundred forty-three million, two hundred twenty-one thousand, thirty-nine".