1452354050221 has 4 divisors (see below), whose sum is σ = 1452356499744. Its totient is φ = 1452351600700.

The previous prime is 1452354050159. The next prime is 1452354050249. The reversal of 1452354050221 is 1220504532541.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1452354050221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452354050921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284826 + ... + 1727956.

It is an arithmetic number, because the mean of its divisors is an integer number (363089124936).

Almost surely, 2^{1452354050221} is an apocalyptic number.

It is an amenable number.

1452354050221 is a deficient number, since it is larger than the sum of its proper divisors (2449523).

1452354050221 is a wasteful number, since it uses less digits than its factorization.

1452354050221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449522.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 1452354050221 its reverse (1220504532541), we get a palindrome (2672858582762).

The spelling of 1452354050221 in words is "one trillion, four hundred fifty-two billion, three hundred fifty-four million, fifty thousand, two hundred twenty-one".