143840084 has 6 divisors (see below), whose sum is σ = 251720154. Its totient is φ = 71920040.

The previous prime is 143840083. The next prime is 143840113. The reversal of 143840084 is 480048341.

It can be written as a sum of positive squares in only one way, i.e., 139759684 + 4080400 = 11822^2 + 2020^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 143840084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143840083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17980007 + ... + 17980014.

It is an arithmetic number, because the mean of its divisors is an integer number (41953359).

Almost surely, 2^143840084 is an apocalyptic number.

It is an amenable number.

143840084 is a deficient number, since it is larger than the sum of its proper divisors (107880070).

143840084 is a wasteful number, since it uses less digits than its factorization.

143840084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35960025 (or 35960023 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 143840084 is about 11993.3349823975. The cubic root of 143840084 is about 523.9541798988.

The spelling of 143840084 in words is "one hundred forty-three million, eight hundred forty thousand, eighty-four".