449495161 has 4 divisors (see below), whose sum is σ = 456204112. Its totient is φ = 442786212.

The previous prime is 449495149. The next prime is 449495243. The reversal of 449495161 is 161594944.

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 449495161 - 2¹¹ = 449493113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449495131) 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, 3354375 + ... + 3354508.

It is an arithmetic number, because the mean of its divisors is an integer number (114051028).

Almost surely, 2^449495161 is an apocalyptic number.

It is an amenable number.

449495161 is a deficient number, since it is larger than the sum of its proper divisors (6708951).

449495161 is an equidigital number, since it uses as much as digits as its factorization.

449495161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6708950.

The product of its digits is 155520, while the sum is 43.

The square root of 449495161 is about 21201.3009270658. The cubic root of 449495161 is about 766.0227600624.

The spelling of 449495161 in words is "four hundred forty-nine million, four hundred ninety-five thousand, one hundred sixty-one".