16265609 has 2 divisors, whose sum is σ = 16265610. Its totient is φ = 16265608.

The previous prime is 16265597. The next prime is 16265621. The reversal of 16265609 is 90656261.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (16265597) and next prime (16265621).

It can be written as a sum of positive squares in only one way, i.e., 12924025 + 3341584 = 3595^2 + 1828^2 .

It is an emirp because it is prime and its reverse (90656261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16265609 is a prime.

It is a super-2 number, since 2×16265609² = 529140072281762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16265629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8132804 + 8132805.

It is an arithmetic number, because the mean of its divisors is an integer number (8132805).

Almost surely, 2^16265609 is an apocalyptic number.

It is an amenable number.

16265609 is a deficient number, since it is larger than the sum of its proper divisors (1).

16265609 is an equidigital number, since it uses as much as digits as its factorization.

16265609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 16265609 is about 4033.0644676226. The cubic root of 16265609 is about 253.3709245156.

The spelling of 16265609 in words is "sixteen million, two hundred sixty-five thousand, six hundred nine".