16140517 has 4 divisors (see below), whose sum is σ = 16213120. Its totient is φ = 16067916.

The previous prime is 16140479. The next prime is 16140521. The reversal of 16140517 is 71504161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71504161 = 1481 ⋅48281.

It is a cyclic number.

It is not a de Polignac number, because 16140517 - 2⁷ = 16140389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16140491 and 16140500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16140577) 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 3 ways as a sum of consecutive naturals, for example, 35967 + ... + 36412.

It is an arithmetic number, because the mean of its divisors is an integer number (4053280).

Almost surely, 2^16140517 is an apocalyptic number.

It is an amenable number.

16140517 is a deficient number, since it is larger than the sum of its proper divisors (72603).

16140517 is an equidigital number, since it uses as much as digits as its factorization.

16140517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72602.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 16140517 is about 4017.5262289125. The cubic root of 16140517 is about 252.7197290026.

Adding to 16140517 its reverse (71504161), we get a palindrome (87644678).

The spelling of 16140517 in words is "sixteen million, one hundred forty thousand, five hundred seventeen".