449731151 has 4 divisors (see below), whose sum is σ = 454784400. Its totient is φ = 444677904.

The previous prime is 449731127. The next prime is 449731157. The reversal of 449731151 is 151137944.

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 449731151 - 2²⁶ = 382622287 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 (449731157) 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 3 ways as a sum of consecutive naturals, for example, 2526491 + ... + 2526668.

It is an arithmetic number, because the mean of its divisors is an integer number (113696100).

Almost surely, 2^449731151 is an apocalyptic number.

449731151 is a deficient number, since it is larger than the sum of its proper divisors (5053249).

449731151 is an equidigital number, since it uses as much as digits as its factorization.

449731151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053248.

The product of its digits is 15120, while the sum is 35.

The square root of 449731151 is about 21206.8656571404. The cubic root of 449731151 is about 766.1567934551.

The spelling of 449731151 in words is "four hundred forty-nine million, seven hundred thirty-one thousand, one hundred fifty-one".