450416149 has 4 divisors (see below), whose sum is σ = 450458764. Its totient is φ = 450373536.

The previous prime is 450416137. The next prime is 450416159. The reversal of 450416149 is 941614054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3305124 + 447111025 = 1818^2 + 21145^2 .

It is a cyclic number.

It is not a de Polignac number, because 450416149 - 2⁵ = 450416117 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 (450416129) 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, 7819 + ... + 31015.

It is an arithmetic number, because the mean of its divisors is an integer number (112614691).

Almost surely, 2^450416149 is an apocalyptic number.

It is an amenable number.

450416149 is a deficient number, since it is larger than the sum of its proper divisors (42615).

450416149 is a wasteful number, since it uses less digits than its factorization.

450416149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42614.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 450416149 is about 21223.0098949230. The cubic root of 450416149 is about 766.5455810240.

The spelling of 450416149 in words is "four hundred fifty million, four hundred sixteen thousand, one hundred forty-nine".