16345005 has 16 divisors (see below), whose sum is σ = 26248320. Its totient is φ = 8685248.

The previous prime is 16345003. The next prime is 16345033. The reversal of 16345005 is 50054361.

It is a cyclic number.

It is not a de Polignac number, because 16345005 - 2¹ = 16345003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16345003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2536 + ... + 6254.

It is an arithmetic number, because the mean of its divisors is an integer number (1640520).

Almost surely, 2^16345005 is an apocalyptic number.

16345005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16345005 is a deficient number, since it is larger than the sum of its proper divisors (9903315).

16345005 is a wasteful number, since it uses less digits than its factorization.

16345005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 16345005 is about 4042.8956207154. The cubic root of 16345005 is about 253.7825085548.

Adding to 16345005 its reverse (50054361), we get a palindrome (66399366).

The spelling of 16345005 in words is "sixteen million, three hundred forty-five thousand, five".