16470109 has 2 divisors, whose sum is σ = 16470110. Its totient is φ = 16470108.

The previous prime is 16470107. The next prime is 16470193. The reversal of 16470109 is 90107461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9474084 + 6996025 = 3078^2 + 2645^2 .

It is an emirp because it is prime and its reverse (90107461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16470109 - 2¹ = 16470107 is a prime.

Together with 16470107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16470107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8235054 + 8235055.

It is an arithmetic number, because the mean of its divisors is an integer number (8235055).

Almost surely, 2^16470109 is an apocalyptic number.

It is an amenable number.

16470109 is a deficient number, since it is larger than the sum of its proper divisors (1).

16470109 is an equidigital number, since it uses as much as digits as its factorization.

16470109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 16470109 is about 4058.3382067048. The cubic root of 16470109 is about 254.4283439290.

The spelling of 16470109 in words is "sixteen million, four hundred seventy thousand, one hundred nine".