450542201 has 4 divisors (see below), whose sum is σ = 450896292. Its totient is φ = 450188112.

The previous prime is 450542179. The next prime is 450542207. The reversal of 450542201 is 102245054.

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 248220025 + 202322176 = 15755^2 + 14224^2 .

It is a cyclic number.

It is not a de Polignac number, because 450542201 - 2¹⁸ = 450280057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450542207) 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, 175130 + ... + 177683.

It is an arithmetic number, because the mean of its divisors is an integer number (112724073).

Almost surely, 2^450542201 is an apocalyptic number.

It is an amenable number.

450542201 is a deficient number, since it is larger than the sum of its proper divisors (354091).

450542201 is a wasteful number, since it uses less digits than its factorization.

450542201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354090.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 450542201 is about 21225.9793884758. The cubic root of 450542201 is about 766.6170820063.

Adding to 450542201 its reverse (102245054), we get a palindrome (552787255).

The spelling of 450542201 in words is "four hundred fifty million, five hundred forty-two thousand, two hundred one".