143993842 has 16 divisors (see below), whose sum is σ = 234016992. Its totient is φ = 66185280.

The previous prime is 143993831. The next prime is 143993867. The reversal of 143993842 is 248399341.

143993842 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 47784 + ... + 50707.

It is an arithmetic number, because the mean of its divisors is an integer number (14626062).

Almost surely, 2^143993842 is an apocalyptic number.

143993842 is a deficient number, since it is larger than the sum of its proper divisors (90023150).

143993842 is a wasteful number, since it uses less digits than its factorization.

143993842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98553.

The product of its digits is 186624, while the sum is 43.

The square root of 143993842 is about 11999.7434139235. The cubic root of 143993842 is about 524.1408071957.

The spelling of 143993842 in words is "one hundred forty-three million, nine hundred ninety-three thousand, eight hundred forty-two".