1450355454221 has 4 divisors (see below), whose sum is σ = 1450365977244. Its totient is φ = 1450344931200.

The previous prime is 1450355454173. The next prime is 1450355454241. The reversal of 1450355454221 is 1224545530541.

It is a happy number.

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 525459712996 + 924895741225 = 724886^2 + 961715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450355454221 - 2⁶ = 1450355454157 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 (1450355454241) 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, 5051990 + ... + 5331351.

It is an arithmetic number, because the mean of its divisors is an integer number (362591494311).

Almost surely, 2^{1450355454221} is an apocalyptic number.

It is an amenable number.

1450355454221 is a deficient number, since it is larger than the sum of its proper divisors (10523023).

1450355454221 is a wasteful number, since it uses less digits than its factorization.

1450355454221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523022.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 1450355454221 in words is "one trillion, four hundred fifty billion, three hundred fifty-five million, four hundred fifty-four thousand, two hundred twenty-one".