16161305 has 16 divisors (see below), whose sum is σ = 21617280. Its totient is φ = 11526912.

The previous prime is 16161283. The next prime is 16161311. The reversal of 16161305 is 50316161.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16161305 - 2¹⁰ = 16160281 is a prime.

It is a super-2 number, since 2×16161305² = 522375558606050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3389 + ... + 6618.

It is an arithmetic number, because the mean of its divisors is an integer number (1351080).

Almost surely, 2^16161305 is an apocalyptic number.

It is an amenable number.

16161305 is a deficient number, since it is larger than the sum of its proper divisors (5455975).

16161305 is a wasteful number, since it uses less digits than its factorization.

16161305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10048.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 16161305 is about 4020.1125606132. The cubic root of 16161305 is about 252.8281783153.

Adding to 16161305 its reverse (50316161), we get a palindrome (66477466).

The spelling of 16161305 in words is "sixteen million, one hundred sixty-one thousand, three hundred five".