16494239 has 2 divisors, whose sum is σ = 16494240. Its totient is φ = 16494238.

The previous prime is 16494229. The next prime is 16494251. The reversal of 16494239 is 93249461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16494239 - 2¹² = 16490143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16494229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8247119 + 8247120.

It is an arithmetic number, because the mean of its divisors is an integer number (8247120).

Almost surely, 2^16494239 is an apocalyptic number.

16494239 is a deficient number, since it is larger than the sum of its proper divisors (1).

16494239 is an equidigital number, since it uses as much as digits as its factorization.

16494239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 16494239 is about 4061.3100103292. The cubic root of 16494239 is about 254.5525357840.

The spelling of 16494239 in words is "sixteen million, four hundred ninety-four thousand, two hundred thirty-nine".