449819131 has 2 divisors, whose sum is σ = 449819132. Its totient is φ = 449819130.

The previous prime is 449819113. The next prime is 449819137. The reversal of 449819131 is 131918944.

Together with previous prime (449819113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 449819131 - 2²³ = 441430523 is a prime.

It is a super-2 number, since 2×449819131² = 404674501227190322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (449819137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224909565 + 224909566.

It is an arithmetic number, because the mean of its divisors is an integer number (224909566).

Almost surely, 2^449819131 is an apocalyptic number.

449819131 is a deficient number, since it is larger than the sum of its proper divisors (1).

449819131 is an equidigital number, since it uses as much as digits as its factorization.

449819131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 449819131 is about 21208.9398839263. The cubic root of 449819131 is about 766.2067507681.

The spelling of 449819131 in words is "four hundred forty-nine million, eight hundred nineteen thousand, one hundred thirty-one".