16146909 has 12 divisors (see below), whose sum is σ = 23531196. Its totient is φ = 10668672.

The previous prime is 16146901. The next prime is 16146913. The reversal of 16146909 is 90964161.

It can be written as a sum of positive squares in 2 ways, for example, as 9018009 + 7128900 = 3003^2 + 2670^2 .

It is not a de Polignac number, because 16146909 - 2³ = 16146901 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16146901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6922 + ... + 8955.

It is an arithmetic number, because the mean of its divisors is an integer number (1960933).

Almost surely, 2^16146909 is an apocalyptic number.

It is an amenable number.

16146909 is a deficient number, since it is larger than the sum of its proper divisors (7384287).

16146909 is a wasteful number, since it uses less digits than its factorization.

16146909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15996 (or 15993 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16146909 is about 4018.3216645759. The cubic root of 16146909 is about 252.7530854581.

The spelling of 16146909 in words is "sixteen million, one hundred forty-six thousand, nine hundred nine".