139143 has 4 divisors (see below), whose sum is σ = 185528. Its totient is φ = 92760.

The previous prime is 139133. The next prime is 139169. The reversal of 139143 is 341931.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 139143 - 2⁶ = 139079 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139143.

It is not an unprimeable number, because it can be changed into a prime (139123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23188 + ... + 23193.

It is an arithmetic number, because the mean of its divisors is an integer number (46382).

2¹³⁹¹⁴³ is an apocalyptic number.

139143 is a deficient number, since it is larger than the sum of its proper divisors (46385).

139143 is an equidigital number, since it uses as much as digits as its factorization.

139143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46384.

The product of its digits is 324, while the sum is 21.

The square root of 139143 is about 373.0187662839. The cubic root of 139143 is about 51.8187724827.

It can be divided in two parts, 139 and 143, that added together give a palindrome (282).

The spelling of 139143 in words is "one hundred thirty-nine thousand, one hundred forty-three".