143840087 has 8 divisors (see below), whose sum is σ = 149232240. Its totient is φ = 138476800.

The previous prime is 143840083. The next prime is 143840113. The reversal of 143840087 is 780048341.

It is a happy number.

143840087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 143840087 - 2² = 143840083 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

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 in 7 ways as a sum of consecutive naturals, for example, 3212 + ... + 17262.

It is an arithmetic number, because the mean of its divisors is an integer number (18654030).

Almost surely, 2^143840087 is an apocalyptic number.

143840087 is a deficient number, since it is larger than the sum of its proper divisors (5392153).

143840087 is a wasteful number, since it uses less digits than its factorization.

143840087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14433.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 143840087 is about 11993.3351074670. The cubic root of 143840087 is about 523.9541835415.

The spelling of 143840087 in words is "one hundred forty-three million, eight hundred forty thousand, eighty-seven".