16382257 has 2 divisors, whose sum is σ = 16382258. Its totient is φ = 16382256.

The previous prime is 16382239. The next prime is 16382281. The reversal of 16382257 is 75228361.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15374241 + 1008016 = 3921^2 + 1004^2 .

It is a cyclic number.

It is not a de Polignac number, because 16382257 - 2¹⁹ = 15857969 is a prime.

It is the 4048-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (16382227) by changing a digit.

It is a nontrivial repunit in base 4047.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8191128 + 8191129.

It is an arithmetic number, because the mean of its divisors is an integer number (8191129).

Almost surely, 2^16382257 is an apocalyptic number.

It is an amenable number.

16382257 is a deficient number, since it is larger than the sum of its proper divisors (1).

16382257 is an equidigital number, since it uses as much as digits as its factorization.

16382257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 16382257 is about 4047.5000926498. The cubic root of 16382257 is about 253.9751613548.

The spelling of 16382257 in words is "sixteen million, three hundred eighty-two thousand, two hundred fifty-seven".