1485897449 has 2 divisors, whose sum is σ = 1485897450. Its totient is φ = 1485897448.

The previous prime is 1485897421. The next prime is 1485897463. The reversal of 1485897449 is 9447985841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1433985424 + 51912025 = 37868^2 + 7205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1485897449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1485897419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 742948724 + 742948725.

It is an arithmetic number, because the mean of its divisors is an integer number (742948725).

Almost surely, 2^1485897449 is an apocalyptic number.

It is an amenable number.

1485897449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1485897449 is an equidigital number, since it uses as much as digits as its factorization.

1485897449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11612160, while the sum is 59.

The square root of 1485897449 is about 38547.3403622092. The cubic root of 1485897449 is about 1141.1155206245.

The spelling of 1485897449 in words is "one billion, four hundred eighty-five million, eight hundred ninety-seven thousand, four hundred forty-nine".