201455402241 has 4 divisors (see below), whose sum is σ = 268607202992. Its totient is φ = 134303601492.

The previous prime is 201455402227. The next prime is 201455402251. The reversal of 201455402241 is 142204554102.

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 not a de Polignac number, because 201455402241 - 2⁶ = 201455402177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201455402199 and 201455402208.

It is not an unprimeable number, because it can be changed into a prime (201455402221) 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, 33575900371 + ... + 33575900376.

It is an arithmetic number, because the mean of its divisors is an integer number (67151800748).

Almost surely, 2^201455402241 is an apocalyptic number.

It is an amenable number.

201455402241 is a deficient number, since it is larger than the sum of its proper divisors (67151800751).

201455402241 is an equidigital number, since it uses as much as digits as its factorization.

201455402241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67151800750.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 201455402241 its reverse (142204554102), we get a palindrome (343659956343).

The spelling of 201455402241 in words is "two hundred one billion, four hundred fifty-five million, four hundred two thousand, two hundred forty-one".