16430161 has 4 divisors (see below), whose sum is σ = 17923824. Its totient is φ = 14936500.

The previous prime is 16430149. The next prime is 16430189. The reversal of 16430161 is 16103461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16430161 - 2⁵ = 16430129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16430101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746815 + ... + 746836.

It is an arithmetic number, because the mean of its divisors is an integer number (4480956).

Almost surely, 2^16430161 is an apocalyptic number.

16430161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16430161 is a deficient number, since it is larger than the sum of its proper divisors (1493663).

16430161 is a wasteful number, since it uses less digits than its factorization.

16430161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493662.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 16430161 is about 4053.4134997555. The cubic root of 16430161 is about 254.2224733619. Note that the first 3 decimals are identical.

The spelling of 16430161 in words is "sixteen million, four hundred thirty thousand, one hundred sixty-one".