1447446149 has 2 divisors, whose sum is σ = 1447446150. Its totient is φ = 1447446148.

The previous prime is 1447446139. The next prime is 1447446157. The reversal of 1447446149 is 9416447441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1308630625 + 138815524 = 36175^2 + 11782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1447446149 - 2¹² = 1447442053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1447446109) 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, 723723074 + 723723075.

It is an arithmetic number, because the mean of its divisors is an integer number (723723075).

Almost surely, 2^1447446149 is an apocalyptic number.

It is an amenable number.

1447446149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1447446149 is an equidigital number, since it uses as much as digits as its factorization.

1447446149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 44.

The square root of 1447446149 is about 38045.3170442829. The cubic root of 1447446149 is about 1131.1863044669.

The spelling of 1447446149 in words is "one billion, four hundred forty-seven million, four hundred forty-six thousand, one hundred forty-nine".