1448381187 has 24 divisors (see below), whose sum is σ = 2330864640. Its totient is φ = 859127280.

The previous prime is 1448381149. The next prime is 1448381197. The reversal of 1448381187 is 7811838441.

1448381187 is a `hidden beast` number, since 14 + 483 + 81 + 1 + 87 = 666.

It is not a de Polignac number, because 1448381187 - 2⁸ = 1448380931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1448381117) 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 in 23 ways as a sum of consecutive naturals, for example, 150987 + ... + 160292.

It is an arithmetic number, because the mean of its divisors is an integer number (97119360).

Almost surely, 2^1448381187 is an apocalyptic number.

1448381187 is a deficient number, since it is larger than the sum of its proper divisors (882483453).

1448381187 is a wasteful number, since it uses less digits than its factorization.

1448381187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311343 (or 311340 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 1448381187 is about 38057.6035372697. The cubic root of 1448381187 is about 1131.4298309720.

The spelling of 1448381187 in words is "one billion, four hundred forty-eight million, three hundred eighty-one thousand, one hundred eighty-seven".