16601145 has 16 divisors (see below), whose sum is σ = 28976832. Its totient is φ = 8048960.

The previous prime is 16601141. The next prime is 16601159. The reversal of 16601145 is 54110661.

It is not a de Polignac number, because 16601145 - 2² = 16601141 is a prime.

It is a super-2 number, since 2×16601145² = 551196030622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16601141) 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 15 ways as a sum of consecutive naturals, for example, 50142 + ... + 50471.

It is an arithmetic number, because the mean of its divisors is an integer number (1811052).

Almost surely, 2^16601145 is an apocalyptic number.

16601145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16601145 is a deficient number, since it is larger than the sum of its proper divisors (12375687).

16601145 is a wasteful number, since it uses less digits than its factorization.

16601145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100632.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 16601145 is about 4074.4502696683. The cubic root of 16601145 is about 255.1013053848.

The spelling of 16601145 in words is "sixteen million, six hundred one thousand, one hundred forty-five".