143857142 has 32 divisors (see below), whose sum is σ = 255667104. Its totient is φ = 60345120.

The previous prime is 143857127. The next prime is 143857187. The reversal of 143857142 is 241758341.

143857142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32528 + ... + 36684.

It is an arithmetic number, because the mean of its divisors is an integer number (7989597).

Almost surely, 2^143857142 is an apocalyptic number.

143857142 is a deficient number, since it is larger than the sum of its proper divisors (111809962).

143857142 is a wasteful number, since it uses less digits than its factorization.

143857142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205 (or 4183 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 143857142 is about 11994.0461062979. The cubic root of 143857142 is about 523.9748909943.

The spelling of 143857142 in words is "one hundred forty-three million, eight hundred fifty-seven thousand, one hundred forty-two".