449158903 has 2 divisors, whose sum is σ = 449158904. Its totient is φ = 449158902.

The previous prime is 449158889. The next prime is 449158909. The reversal of 449158903 is 309851944.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449158903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449158903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449158909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224579451 + 224579452.

It is an arithmetic number, because the mean of its divisors is an integer number (224579452).

Almost surely, 2^449158903 is an apocalyptic number.

449158903 is a deficient number, since it is larger than the sum of its proper divisors (1).

449158903 is an equidigital number, since it uses as much as digits as its factorization.

449158903 is an odious number, because the sum of its binary digits is odd.

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

The square root of 449158903 is about 21193.3693168406. The cubic root of 449158903 is about 765.8316971688.

The spelling of 449158903 in words is "four hundred forty-nine million, one hundred fifty-eight thousand, nine hundred three".