16019959 has 2 divisors, whose sum is σ = 16019960. Its totient is φ = 16019958.

The previous prime is 16019957. The next prime is 16019981. The reversal of 16019959 is 95991061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16019959 - 2¹ = 16019957 is a prime.

Together with 16019957, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16019957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8009979 + 8009980.

It is an arithmetic number, because the mean of its divisors is an integer number (8009980).

Almost surely, 2^16019959 is an apocalyptic number.

16019959 is a deficient number, since it is larger than the sum of its proper divisors (1).

16019959 is an equidigital number, since it uses as much as digits as its factorization.

16019959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 16019959 is about 4002.4940974347. The cubic root of 16019959 is about 252.0889446254.

The spelling of 16019959 in words is "sixteen million, nineteen thousand, nine hundred fifty-nine".