143238268 has 12 divisors (see below), whose sum is σ = 250834752. Its totient is φ = 71571200.

The previous prime is 143238257. The next prime is 143238287. The reversal of 143238268 is 862832341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4780 + ... + 17587.

It is an arithmetic number, because the mean of its divisors is an integer number (20902896).

Almost surely, 2^143238268 is an apocalyptic number.

It is an amenable number.

143238268 is a deficient number, since it is larger than the sum of its proper divisors (107596484).

143238268 is a wasteful number, since it uses less digits than its factorization.

With its successor (143238269) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (23970).

143238268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23972 (or 23970 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 143238268 is about 11968.2190822194. The cubic root of 143238268 is about 523.2224302388. Note that the first 3 decimals are identical.

The spelling of 143238268 in words is "one hundred forty-three million, two hundred thirty-eight thousand, two hundred sixty-eight".