1449646241 has 2 divisors, whose sum is σ = 1449646242. Its totient is φ = 1449646240.

The previous prime is 1449646213. The next prime is 1449646243. The reversal of 1449646241 is 1426469441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 847974400 + 601671841 = 29120^2 + 24529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1449646241 is a prime.

It is a Sophie Germain prime.

Together with 1449646243, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1449646243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724823120 + 724823121.

It is an arithmetic number, because the mean of its divisors is an integer number (724823121).

Almost surely, 2^1449646241 is an apocalyptic number.

It is an amenable number.

1449646241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449646241 is an equidigital number, since it uses as much as digits as its factorization.

1449646241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 41.

The square root of 1449646241 is about 38074.2201627295. The cubic root of 1449646241 is about 1131.7591419138.

The spelling of 1449646241 in words is "one billion, four hundred forty-nine million, six hundred forty-six thousand, two hundred forty-one".