148981444 has 12 divisors (see below), whose sum is σ = 261322684. Its totient is φ = 74317824.

The previous prime is 148981429. The next prime is 148981471. The reversal of 148981444 is 444189841.

It can be written as a sum of positive squares in 2 ways, for example, as 56821444 + 92160000 = 7538^2 + 9600^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 148981444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41277 + ... + 44740.

Almost surely, 2^148981444 is an apocalyptic number.

It is an amenable number.

148981444 is a deficient number, since it is larger than the sum of its proper divisors (112341240).

148981444 is a wasteful number, since it uses less digits than its factorization.

148981444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86454 (or 86452 counting only the distinct ones).

The product of its digits is 147456, while the sum is 43.

The square root of 148981444 is about 12205.7955086918. The cubic root of 148981444 is about 530.1239107457.

The spelling of 148981444 in words is "one hundred forty-eight million, nine hundred eighty-one thousand, four hundred forty-four".