449531231 has 2 divisors, whose sum is σ = 449531232. Its totient is φ = 449531230.

The previous prime is 449531227. The next prime is 449531261. The reversal of 449531231 is 132135944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449531231 - 2² = 449531227 is a prime.

It is a super-2 number, since 2×449531231² = 404156655288750722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449531261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224765615 + 224765616.

It is an arithmetic number, because the mean of its divisors is an integer number (224765616).

Almost surely, 2^449531231 is an apocalyptic number.

449531231 is a deficient number, since it is larger than the sum of its proper divisors (1).

449531231 is an equidigital number, since it uses as much as digits as its factorization.

449531231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 449531231 is about 21202.1515653483. The cubic root of 449531231 is about 766.0432494947.

The spelling of 449531231 in words is "four hundred forty-nine million, five hundred thirty-one thousand, two hundred thirty-one".