16142839 has 2 divisors, whose sum is σ = 16142840. Its totient is φ = 16142838.

The previous prime is 16142831. The next prime is 16142851. The reversal of 16142839 is 93824161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16142839 - 2³ = 16142831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16142831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8071419 + 8071420.

It is an arithmetic number, because the mean of its divisors is an integer number (8071420).

Almost surely, 2^16142839 is an apocalyptic number.

16142839 is a deficient number, since it is larger than the sum of its proper divisors (1).

16142839 is an equidigital number, since it uses as much as digits as its factorization.

16142839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 16142839 is about 4017.8152023208. The cubic root of 16142839 is about 252.7318473065.

The spelling of 16142839 in words is "sixteen million, one hundred forty-two thousand, eight hundred thirty-nine".