450204121 has 2 divisors, whose sum is σ = 450204122. Its totient is φ = 450204120.

The previous prime is 450204089. The next prime is 450204127. The reversal of 450204121 is 121402054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340771600 + 109432521 = 18460^2 + 10461^2 .

It is a cyclic number.

It is not a de Polignac number, because 450204121 - 2⁵ = 450204089 is a prime.

It is not a weakly prime, because it can be changed into another prime (450204127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225102060 + 225102061.

It is an arithmetic number, because the mean of its divisors is an integer number (225102061).

Almost surely, 2^450204121 is an apocalyptic number.

It is an amenable number.

450204121 is a deficient number, since it is larger than the sum of its proper divisors (1).

450204121 is an equidigital number, since it uses as much as digits as its factorization.

450204121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 450204121 is about 21218.0140682393. The cubic root of 450204121 is about 766.4252814327.

Adding to 450204121 its reverse (121402054), we get a palindrome (571606175).

It can be divided in two parts, 45020 and 4121, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 450204121 in words is "four hundred fifty million, two hundred four thousand, one hundred twenty-one".