16469161 has 4 divisors (see below), whose sum is σ = 16632324. Its totient is φ = 16306000.

The previous prime is 16469149. The next prime is 16469171. The reversal of 16469161 is 16196461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6859161 + 9610000 = 2619^2 + 3100^2 .

It is a cyclic number.

It is not a de Polignac number, because 16469161 - 2¹⁵ = 16436393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16469111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81430 + ... + 81631.

It is an arithmetic number, because the mean of its divisors is an integer number (4158081).

Almost surely, 2^16469161 is an apocalyptic number.

It is an amenable number.

16469161 is a deficient number, since it is larger than the sum of its proper divisors (163163).

16469161 is a wasteful number, since it uses less digits than its factorization.

16469161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163162.

The product of its digits is 7776, while the sum is 34.

The square root of 16469161 is about 4058.2214084498. The cubic root of 16469161 is about 254.4234623038.

The spelling of 16469161 in words is "sixteen million, four hundred sixty-nine thousand, one hundred sixty-one".