16200091 has 2 divisors, whose sum is σ = 16200092. Its totient is φ = 16200090.

The previous prime is 16200089. The next prime is 16200127. The reversal of 16200091 is 19000261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16200091 - 2¹ = 16200089 is a prime.

Together with 16200089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16200061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8100045 + 8100046.

It is an arithmetic number, because the mean of its divisors is an integer number (8100046).

Almost surely, 2^16200091 is an apocalyptic number.

16200091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16200091 is an equidigital number, since it uses as much as digits as its factorization.

16200091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 16200091 is about 4024.9336640496. The cubic root of 16200091 is about 253.0302733697.

The spelling of 16200091 in words is "sixteen million, two hundred thousand, ninety-one".