16455193 has 2 divisors, whose sum is σ = 16455194. Its totient is φ = 16455192.

The previous prime is 16455191. The next prime is 16455211. The reversal of 16455193 is 39155461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15116544 + 1338649 = 3888^2 + 1157^2 .

It is a cyclic number.

It is not a de Polignac number, because 16455193 - 2¹ = 16455191 is a prime.

Together with 16455191, it forms a pair of twin primes.

It is the 4057-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (16455191) by changing a digit.

It is a nontrivial repunit in base 4056.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8227596 + 8227597.

It is an arithmetic number, because the mean of its divisors is an integer number (8227597).

Almost surely, 2^16455193 is an apocalyptic number.

It is an amenable number.

16455193 is a deficient number, since it is larger than the sum of its proper divisors (1).

16455193 is an equidigital number, since it uses as much as digits as its factorization.

16455193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 34.

The square root of 16455193 is about 4056.5000924442. The cubic root of 16455193 is about 254.3515138484.

The spelling of 16455193 in words is "sixteen million, four hundred fifty-five thousand, one hundred ninety-three".