16142217 has 24 divisors (see below), whose sum is σ = 26966016. Its totient is φ = 8513568.

The previous prime is 16142201. The next prime is 16142221. The reversal of 16142217 is 71224161.

It is not a de Polignac number, because 16142217 - 2⁴ = 16142201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16142237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2313 + ... + 6134.

It is an arithmetic number, because the mean of its divisors is an integer number (1123584).

Almost surely, 2^16142217 is an apocalyptic number.

It is an amenable number.

16142217 is a deficient number, since it is larger than the sum of its proper divisors (10823799).

16142217 is a wasteful number, since it uses less digits than its factorization.

16142217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8477 (or 8470 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 16142217 is about 4017.7377963227. The cubic root of 16142217 is about 252.7286012598.

Adding to 16142217 its reverse (71224161), we get a palindrome (87366378).

The spelling of 16142217 in words is "sixteen million, one hundred forty-two thousand, two hundred seventeen".