16242839 has 2 divisors, whose sum is σ = 16242840. Its totient is φ = 16242838.

The previous prime is 16242833. The next prime is 16242841. The reversal of 16242839 is 93824261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16242839 - 2¹² = 16238743 is a prime.

Together with 16242841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16242799 and 16242808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16242833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8121419 + 8121420.

It is an arithmetic number, because the mean of its divisors is an integer number (8121420).

Almost surely, 2^16242839 is an apocalyptic number.

16242839 is a deficient number, since it is larger than the sum of its proper divisors (1).

16242839 is an equidigital number, since it uses as much as digits as its factorization.

16242839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 16242839 is about 4030.2405635396. The cubic root of 16242839 is about 253.2526391577.

The spelling of 16242839 in words is "sixteen million, two hundred forty-two thousand, eight hundred thirty-nine".