148789441 has 4 divisors (see below), whose sum is σ = 148825300. Its totient is φ = 148753584.

The previous prime is 148789439. The next prime is 148789477. The reversal of 148789441 is 144987841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144987841 = 19 ⋅7630939.

It can be written as a sum of positive squares in 2 ways, for example, as 41873841 + 106915600 = 6471^2 + 10340^2 .

It is a cyclic number.

It is not a de Polignac number, because 148789441 - 2¹ = 148789439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148789391 and 148789400.

It is not an unprimeable number, because it can be changed into a prime (148789411) 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 3 ways as a sum of consecutive naturals, for example, 10746 + ... + 20323.

It is an arithmetic number, because the mean of its divisors is an integer number (37206325).

Almost surely, 2^148789441 is an apocalyptic number.

It is an amenable number.

148789441 is a deficient number, since it is larger than the sum of its proper divisors (35859).

148789441 is an equidigital number, since it uses as much as digits as its factorization.

148789441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35858.

The product of its digits is 258048, while the sum is 46.

The square root of 148789441 is about 12197.9277338407. The cubic root of 148789441 is about 529.8960766928.

The spelling of 148789441 in words is "one hundred forty-eight million, seven hundred eighty-nine thousand, four hundred forty-one".