162204401 has 4 divisors (see below), whose sum is σ = 162416100. Its totient is φ = 161992704.

The previous prime is 162204391. The next prime is 162204407. The reversal of 162204401 is 104402261.

162204401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27667600 + 134536801 = 5260^2 + 11599^2 .

It is a cyclic number.

It is not a de Polignac number, because 162204401 - 2²⁶ = 95095537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162204407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104696 + ... + 106233.

It is an arithmetic number, because the mean of its divisors is an integer number (40604025).

Almost surely, 2^162204401 is an apocalyptic number.

It is an amenable number.

162204401 is a deficient number, since it is larger than the sum of its proper divisors (211699).

162204401 is an equidigital number, since it uses as much as digits as its factorization.

162204401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211698.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 162204401 is about 12735.9491597603. The cubic root of 162204401 is about 545.3653538768.

Adding to 162204401 its reverse (104402261), we get a palindrome (266606662).

The spelling of 162204401 in words is "one hundred sixty-two million, two hundred four thousand, four hundred one".