143823842 has 8 divisors (see below), whose sum is σ = 228426156. Its totient is φ = 67681792.

The previous prime is 143823829. The next prime is 143823857. The reversal of 143823842 is 248328341.

It can be written as a sum of positive squares in 2 ways, for example, as 131997121 + 11826721 = 11489^2 + 3439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2115023 + ... + 2115090.

Almost surely, 2^143823842 is an apocalyptic number.

143823842 is a deficient number, since it is larger than the sum of its proper divisors (84602314).

143823842 is a wasteful number, since it uses less digits than its factorization.

143823842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230132.

The product of its digits is 36864, while the sum is 35.

The square root of 143823842 is about 11992.6578371936. The cubic root of 143823842 is about 523.9344580339.

The spelling of 143823842 in words is "one hundred forty-three million, eight hundred twenty-three thousand, eight hundred forty-two".