449275531 has 2 divisors, whose sum is σ = 449275532. Its totient is φ = 449275530.

The previous prime is 449275517. The next prime is 449275543. The reversal of 449275531 is 135572944.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 449275531 - 2⁷ = 449275403 is a prime.

It is a super-2 number, since 2×449275531² = 403697005510663922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (449275331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224637765 + 224637766.

It is an arithmetic number, because the mean of its divisors is an integer number (224637766).

Almost surely, 2^449275531 is an apocalyptic number.

449275531 is a deficient number, since it is larger than the sum of its proper divisors (1).

449275531 is an equidigital number, since it uses as much as digits as its factorization.

449275531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 449275531 is about 21196.1206592150. The cubic root of 449275531 is about 765.8979763772.

The spelling of 449275531 in words is "four hundred forty-nine million, two hundred seventy-five thousand, five hundred thirty-one".