201504401 has 4 divisors (see below), whose sum is σ = 230290752. Its totient is φ = 172718052.

The previous prime is 201504389. The next prime is 201504409. The reversal of 201504401 is 104405102.

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 201504401 - 2¹⁴ = 201488017 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 201504401.

It is not an unprimeable number, because it can be changed into a prime (201504409) 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, 14393165 + ... + 14393178.

It is an arithmetic number, because the mean of its divisors is an integer number (57572688).

Almost surely, 2^201504401 is an apocalyptic number.

It is an amenable number.

201504401 is a deficient number, since it is larger than the sum of its proper divisors (28786351).

201504401 is an equidigital number, since it uses as much as digits as its factorization.

201504401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28786350.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 201504401 is about 14195.2245843453. The cubic root of 201504401 is about 586.2661848315.

Adding to 201504401 its reverse (104405102), we get a palindrome (305909503).

The spelling of 201504401 in words is "two hundred one million, five hundred four thousand, four hundred one".