16463121 has 4 divisors (see below), whose sum is σ = 21950832. Its totient is φ = 10975412.

The previous prime is 16463119. The next prime is 16463129. The reversal of 16463121 is 12136461.

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.

It is a cyclic number.

It is not a de Polignac number, because 16463121 - 2¹ = 16463119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16463091 and 16463100.

It is not an unprimeable number, because it can be changed into a prime (16463129) 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, 2743851 + ... + 2743856.

It is an arithmetic number, because the mean of its divisors is an integer number (5487708).

Almost surely, 2^16463121 is an apocalyptic number.

It is an amenable number.

16463121 is a deficient number, since it is larger than the sum of its proper divisors (5487711).

16463121 is an equidigital number, since it uses as much as digits as its factorization.

16463121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487710.

The product of its digits is 864, while the sum is 24.

The square root of 16463121 is about 4057.4771718397. The cubic root of 16463121 is about 254.3923555662.

Adding to 16463121 its reverse (12136461), we get a palindrome (28599582).

The spelling of 16463121 in words is "sixteen million, four hundred sixty-three thousand, one hundred twenty-one".