16143139 has 2 divisors, whose sum is σ = 16143140. Its totient is φ = 16143138.

The previous prime is 16143131. The next prime is 16143151. The reversal of 16143139 is 93134161.

It is a weak prime.

It is an emirp because it is prime and its reverse (93134161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16143139 - 2³ = 16143131 is a prime.

It is not a weakly prime, because it can be changed into another prime (16143131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8071569 + 8071570.

It is an arithmetic number, because the mean of its divisors is an integer number (8071570).

Almost surely, 2^16143139 is an apocalyptic number.

16143139 is a deficient number, since it is larger than the sum of its proper divisors (1).

16143139 is an equidigital number, since it uses as much as digits as its factorization.

16143139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 16143139 is about 4017.8525358704. The cubic root of 16143139 is about 252.7334128941.

It can be divided in two parts, 1614 and 3139, that added together give a triangular number (4753 = T₉₇).

The spelling of 16143139 in words is "sixteen million, one hundred forty-three thousand, one hundred thirty-nine".