16380191 has 2 divisors, whose sum is σ = 16380192. Its totient is φ = 16380190.

The previous prime is 16380181. The next prime is 16380253. The reversal of 16380191 is 19108361.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16380191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16380101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8190095 + 8190096.

It is an arithmetic number, because the mean of its divisors is an integer number (8190096).

Almost surely, 2^16380191 is an apocalyptic number.

16380191 is a deficient number, since it is larger than the sum of its proper divisors (1).

16380191 is an equidigital number, since it uses as much as digits as its factorization.

16380191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 16380191 is about 4047.2448653374. The cubic root of 16380191 is about 253.9644844633.

The spelling of 16380191 in words is "sixteen million, three hundred eighty thousand, one hundred ninety-one".