450212149 has 4 divisors (see below), whose sum is σ = 450313600. Its totient is φ = 450110700.

The previous prime is 450212141. The next prime is 450212171. The reversal of 450212149 is 941212054.

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.

It is a cyclic number.

It is not a de Polignac number, because 450212149 - 2³ = 450212141 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 (450212141) 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, 43749 + ... + 53050.

It is an arithmetic number, because the mean of its divisors is an integer number (112578400).

Almost surely, 2^450212149 is an apocalyptic number.

It is an amenable number.

450212149 is a deficient number, since it is larger than the sum of its proper divisors (101451).

450212149 is an equidigital number, since it uses as much as digits as its factorization.

450212149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101450.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 450212149 is about 21218.2032462695. The cubic root of 450212149 is about 766.4298370148.

The spelling of 450212149 in words is "four hundred fifty million, two hundred twelve thousand, one hundred forty-nine".