16469149 has 2 divisors, whose sum is σ = 16469150. Its totient is φ = 16469148.

The previous prime is 16469147. The next prime is 16469171. The reversal of 16469149 is 94196461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9966649 + 6502500 = 3157^2 + 2550^2 .

It is a cyclic number.

It is not a de Polignac number, because 16469149 - 2¹ = 16469147 is a prime.

Together with 16469147, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16469147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8234574 + 8234575.

It is an arithmetic number, because the mean of its divisors is an integer number (8234575).

Almost surely, 2^16469149 is an apocalyptic number.

It is an amenable number.

16469149 is a deficient number, since it is larger than the sum of its proper divisors (1).

16469149 is an equidigital number, since it uses as much as digits as its factorization.

16469149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 16469149 is about 4058.2199299693. The cubic root of 16469149 is about 254.4234005099.

The spelling of 16469149 in words is "sixteen million, four hundred sixty-nine thousand, one hundred forty-nine".