1449661 has 2 divisors, whose sum is σ = 1449662. Its totient is φ = 1449660.

The previous prime is 1449649. The next prime is 1449671. The reversal of 1449661 is 1669441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1425636 + 24025 = 1194^2 + 155^2 .

It is an emirp because it is prime and its reverse (1669441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1449661 - 2¹⁹ = 925373 is a prime.

It is a Chen prime.

1449661 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1449601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724830 + 724831.

It is an arithmetic number, because the mean of its divisors is an integer number (724831).

2^1449661 is an apocalyptic number.

It is an amenable number.

1449661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449661 is an equidigital number, since it uses as much as digits as its factorization.

1449661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 1449661 is about 1204.0186875626. The cubic root of 1449661 is about 113.1762982753.

The spelling of 1449661 in words is "one million, four hundred forty-nine thousand, six hundred sixty-one".