16085591 has 2 divisors, whose sum is σ = 16085592. Its totient is φ = 16085590.

The previous prime is 16085567. The next prime is 16085599. The reversal of 16085591 is 19558061.

It is a strong prime.

It is an emirp because it is prime and its reverse (19558061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16085591 - 2²² = 11891287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16085599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8042795 + 8042796.

It is an arithmetic number, because the mean of its divisors is an integer number (8042796).

Almost surely, 2^16085591 is an apocalyptic number.

16085591 is a deficient number, since it is larger than the sum of its proper divisors (1).

16085591 is an equidigital number, since it uses as much as digits as its factorization.

16085591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 16085591 is about 4010.6846049023. The cubic root of 16085591 is about 252.4327357345.

The spelling of 16085591 in words is "sixteen million, eighty-five thousand, five hundred ninety-one".