16172107 has 8 divisors (see below), whose sum is σ = 18860000. Its totient is φ = 13861512.

The previous prime is 16172069. The next prime is 16172119. The reversal of 16172107 is 70127161.

It is a de Polignac number, because none of the positive numbers 2^k-16172107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16172207) 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 7 ways as a sum of consecutive naturals, for example, 23232 + ... + 23917.

It is an arithmetic number, because the mean of its divisors is an integer number (2357500).

Almost surely, 2^16172107 is an apocalyptic number.

16172107 is a deficient number, since it is larger than the sum of its proper divisors (2687893).

16172107 is an frugal number, since it uses more digits than its factorization.

16172107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47170 (or 47156 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 16172107 is about 4021.4558309150. The cubic root of 16172107 is about 252.8844947605.

Adding to 16172107 its reverse (70127161), we get a palindrome (86299268).

The spelling of 16172107 in words is "sixteen million, one hundred seventy-two thousand, one hundred seven".