143986938 has 16 divisors (see below), whose sum is σ = 288545760. Its totient is φ = 47900336.

The previous prime is 143986933. The next prime is 143986951. The reversal of 143986938 is 839689341.

143986938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (143986933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20520 + ... + 26627.

It is an arithmetic number, because the mean of its divisors is an integer number (18034110).

Almost surely, 2^143986938 is an apocalyptic number.

143986938 is an abundant number, since it is smaller than the sum of its proper divisors (144558822).

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

143986938 is a wasteful number, since it uses less digits than its factorization.

143986938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47661.

The product of its digits is 1119744, while the sum is 51.

The square root of 143986938 is about 11999.4557376574. The cubic root of 143986938 is about 524.1324301570.

The spelling of 143986938 in words is "one hundred forty-three million, nine hundred eighty-six thousand, nine hundred thirty-eight".