143139892 has 24 divisors (see below), whose sum is σ = 288961344. Its totient is φ = 60771072.

The previous prime is 143139877. The next prime is 143139947. The reversal of 143139892 is 298931341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20893 + ... + 26884.

It is an arithmetic number, because the mean of its divisors is an integer number (12040056).

Almost surely, 2^143139892 is an apocalyptic number.

It is an amenable number.

143139892 is an abundant number, since it is smaller than the sum of its proper divisors (145821452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143139892 is a wasteful number, since it uses less digits than its factorization.

143139892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47895 (or 47893 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 143139892 is about 11964.1084916512. The cubic root of 143139892 is about 523.1026198027.

The spelling of 143139892 in words is "one hundred forty-three million, one hundred thirty-nine thousand, eight hundred ninety-two".