16314521 has 16 divisors (see below), whose sum is σ = 18422400. Its totient is φ = 14370048.

The previous prime is 16314517. The next prime is 16314523. The reversal of 16314521 is 12541361.

It is a cyclic number.

It is not a de Polignac number, because 16314521 - 2² = 16314517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (16314523) 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 15 ways as a sum of consecutive naturals, for example, 15665 + ... + 16673.

It is an arithmetic number, because the mean of its divisors is an integer number (1151400).

Almost surely, 2^16314521 is an apocalyptic number.

It is an amenable number.

16314521 is a deficient number, since it is larger than the sum of its proper divisors (2107879).

16314521 is a wasteful number, since it uses less digits than its factorization.

16314521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088.

The product of its digits is 720, while the sum is 23.

The square root of 16314521 is about 4039.1237911210. The cubic root of 16314521 is about 253.6246393164.

Adding to 16314521 its reverse (12541361), we get a palindrome (28855882).

The spelling of 16314521 in words is "sixteen million, three hundred fourteen thousand, five hundred twenty-one".