450432149 has 4 divisors (see below), whose sum is σ = 450491340. Its totient is φ = 450372960.

The previous prime is 450432131. The next prime is 450432163. The reversal of 450432149 is 941234054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 941234054 = 2 ⋅470617027.

It can be written as a sum of positive squares in 2 ways, for example, as 143832049 + 306600100 = 11993^2 + 17510^2 .

It is a cyclic number.

It is not a de Polignac number, because 450432149 - 2⁸ = 450431893 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 (450402149) 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, 16142 + ... + 34079.

It is an arithmetic number, because the mean of its divisors is an integer number (112622835).

Almost surely, 2^450432149 is an apocalyptic number.

It is an amenable number.

450432149 is a deficient number, since it is larger than the sum of its proper divisors (59191).

450432149 is an equidigital number, since it uses as much as digits as its factorization.

450432149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59190.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 450432149 is about 21223.3868409356. The cubic root of 450432149 is about 766.5546575074.

The spelling of 450432149 in words is "four hundred fifty million, four hundred thirty-two thousand, one hundred forty-nine".