1448381149 has 2 divisors, whose sum is σ = 1448381150. Its totient is φ = 1448381148.

The previous prime is 1448381131. The next prime is 1448381197. The reversal of 1448381149 is 9411838441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1443620025 + 4761124 = 37995^2 + 2182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448381149 - 2⁵ = 1448381117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1448381449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724190574 + 724190575.

It is an arithmetic number, because the mean of its divisors is an integer number (724190575).

Almost surely, 2^1448381149 is an apocalyptic number.

It is an amenable number.

1448381149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1448381149 is an equidigital number, since it uses as much as digits as its factorization.

1448381149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 43.

The square root of 1448381149 is about 38057.6030380264. The cubic root of 1448381149 is about 1131.4298210772.

The spelling of 1448381149 in words is "one billion, four hundred forty-eight million, three hundred eighty-one thousand, one hundred forty-nine".