449143051 has 4 divisors (see below), whose sum is σ = 513306352. Its totient is φ = 384979752.

The previous prime is 449143031. The next prime is 449143073. The reversal of 449143051 is 150341944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449143051 - 2¹⁵ = 449110283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449143031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32081640 + ... + 32081653.

It is an arithmetic number, because the mean of its divisors is an integer number (128326588).

Almost surely, 2^449143051 is an apocalyptic number.

449143051 is a deficient number, since it is larger than the sum of its proper divisors (64163301).

449143051 is an equidigital number, since it uses as much as digits as its factorization.

449143051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64163300.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 449143051 is about 21192.9953286457. The cubic root of 449143051 is about 765.8226876573.

Adding to 449143051 its reverse (150341944), we get a palindrome (599484995).

The spelling of 449143051 in words is "four hundred forty-nine million, one hundred forty-three thousand, fifty-one".