449145187 has 2 divisors, whose sum is σ = 449145188. Its totient is φ = 449145186.

The previous prime is 449145167. The next prime is 449145197. The reversal of 449145187 is 781541944.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 449145187 - 2¹⁹ = 448620899 is a prime.

It is not a weakly prime, because it can be changed into another prime (449145167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224572593 + 224572594.

It is an arithmetic number, because the mean of its divisors is an integer number (224572594).

Almost surely, 2^449145187 is an apocalyptic number.

449145187 is a deficient number, since it is larger than the sum of its proper divisors (1).

449145187 is an equidigital number, since it uses as much as digits as its factorization.

449145187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 449145187 is about 21193.0457225949. The cubic root of 449145187 is about 765.8239016690.

The spelling of 449145187 in words is "four hundred forty-nine million, one hundred forty-five thousand, one hundred eighty-seven".