16117105 has 8 divisors (see below), whose sum is σ = 20478312. Its totient is φ = 12135168.

The previous prime is 16117103. The next prime is 16117121. The reversal of 16117105 is 50171161.

It can be written as a sum of positive squares in 4 ways, for example, as 4255969 + 11861136 = 2063^2 + 3444^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16117105 - 2¹ = 16117103 is a prime.

It is a super-2 number, since 2×16117105² = 519522147162050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16117103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94722 + ... + 94891.

It is an arithmetic number, because the mean of its divisors is an integer number (2559789).

Almost surely, 2^16117105 is an apocalyptic number.

It is an amenable number.

16117105 is a deficient number, since it is larger than the sum of its proper divisors (4361207).

16117105 is a wasteful number, since it uses less digits than its factorization.

16117105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189635.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 16117105 is about 4014.6114382341. The cubic root of 16117105 is about 252.5974789462.

Adding to 16117105 its reverse (50171161), we get a palindrome (66288266).

The spelling of 16117105 in words is "sixteen million, one hundred seventeen thousand, one hundred five".