143226239 has 12 divisors (see below), whose sum is σ = 155642424. Its totient is φ = 131020224.

The previous prime is 143226229. The next prime is 143226277. The reversal of 143226239 is 932622341.

It is not a de Polignac number, because 143226239 - 2²⁰ = 142177663 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 (143226229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243704 + ... + 244290.

It is an arithmetic number, because the mean of its divisors is an integer number (12970202).

Almost surely, 2^143226239 is an apocalyptic number.

143226239 is a deficient number, since it is larger than the sum of its proper divisors (12416185).

143226239 is an equidigital number, since it uses as much as digits as its factorization.

143226239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 737 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 143226239 is about 11967.7165324050. The cubic root of 143226239 is about 523.2077832712.

The spelling of 143226239 in words is "one hundred forty-three million, two hundred twenty-six thousand, two hundred thirty-nine".