449161187 has 8 divisors (see below), whose sum is σ = 469387776. Its totient is φ = 429379272.

The previous prime is 449161177. The next prime is 449161211. The reversal of 449161187 is 781161944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 449161187 - 2¹⁰ = 449160163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449161147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109103 + ... + 113144.

It is an arithmetic number, because the mean of its divisors is an integer number (58673472).

Almost surely, 2^449161187 is an apocalyptic number.

449161187 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

449161187 is a deficient number, since it is larger than the sum of its proper divisors (20226589).

449161187 is a wasteful number, since it uses less digits than its factorization.

449161187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222337.

The product of its digits is 48384, while the sum is 41.

The square root of 449161187 is about 21193.4232015501. The cubic root of 449161187 is about 765.8329952667.

The spelling of 449161187 in words is "four hundred forty-nine million, one hundred sixty-one thousand, one hundred eighty-seven".