16403201 has 4 divisors (see below), whose sum is σ = 16634304. Its totient is φ = 16172100.

The previous prime is 16403197. The next prime is 16403227. The reversal of 16403201 is 10230461.

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 16403201 - 2² = 16403197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16403201.

It is not an unprimeable number, because it can be changed into a prime (16403801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115445 + ... + 115586.

It is an arithmetic number, because the mean of its divisors is an integer number (4158576).

Almost surely, 2^16403201 is an apocalyptic number.

It is an amenable number.

16403201 is a deficient number, since it is larger than the sum of its proper divisors (231103).

16403201 is an equidigital number, since it uses as much as digits as its factorization.

16403201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231102.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 16403201 is about 4050.0865422852. The cubic root of 16403201 is about 254.0833473143.

Adding to 16403201 its reverse (10230461), we get a palindrome (26633662).

The spelling of 16403201 in words is "sixteen million, four hundred three thousand, two hundred one".