1449216647 has 2 divisors, whose sum is σ = 1449216648. Its totient is φ = 1449216646.

The previous prime is 1449216563. The next prime is 1449216661. The reversal of 1449216647 is 7466129441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1449216647 - 2¹² = 1449212551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1449216598 and 1449216607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1449216677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724608323 + 724608324.

It is an arithmetic number, because the mean of its divisors is an integer number (724608324).

Almost surely, 2^1449216647 is an apocalyptic number.

1449216647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449216647 is an equidigital number, since it uses as much as digits as its factorization.

1449216647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 1449216647 is about 38068.5782109077. The cubic root of 1449216647 is about 1131.6473341825.

The spelling of 1449216647 in words is "one billion, four hundred forty-nine million, two hundred sixteen thousand, six hundred forty-seven".