1446661361 has 2 divisors, whose sum is σ = 1446661362. Its totient is φ = 1446661360.

The previous prime is 1446661357. The next prime is 1446661373. The reversal of 1446661361 is 1631666441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1355344225 + 91317136 = 36815^2 + 9556^2 .

It is a cyclic number.

It is not a de Polignac number, because 1446661361 - 2² = 1446661357 is a prime.

It is not a weakly prime, because it can be changed into another prime (1446661561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 723330680 + 723330681.

It is an arithmetic number, because the mean of its divisors is an integer number (723330681).

Almost surely, 2^1446661361 is an apocalyptic number.

It is an amenable number.

1446661361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1446661361 is an equidigital number, since it uses as much as digits as its factorization.

1446661361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 1446661361 is about 38035.0017878270. The cubic root of 1446661361 is about 1130.9818289435.

The spelling of 1446661361 in words is "one billion, four hundred forty-six million, six hundred sixty-one thousand, three hundred sixty-one".