139963143 has 16 divisors (see below), whose sum is σ = 189665280. Its totient is φ = 91796736.

The previous prime is 139963141. The next prime is 139963147. The reversal of 139963143 is 341369931.

139963143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139963143 - 2¹ = 139963141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139963141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50746 + ... + 53432.

It is an arithmetic number, because the mean of its divisors is an integer number (11854080).

Almost surely, 2^139963143 is an apocalyptic number.

139963143 is a deficient number, since it is larger than the sum of its proper divisors (49702137).

139963143 is a wasteful number, since it uses less digits than its factorization.

139963143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966.

The product of its digits is 52488, while the sum is 39.

The square root of 139963143 is about 11830.6019711594. The cubic root of 139963143 is about 519.2038395775.

The spelling of 139963143 in words is "one hundred thirty-nine million, nine hundred sixty-three thousand, one hundred forty-three".