148448437 has 4 divisors (see below), whose sum is σ = 157180716. Its totient is φ = 139716160.

The previous prime is 148448431. The next prime is 148448453. The reversal of 148448437 is 734844841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 734844841 = 53 ⋅13864997.

It can be written as a sum of positive squares in 2 ways, for example, as 70408881 + 78039556 = 8391^2 + 8834^2 .

It is a cyclic number.

It is not a de Polignac number, because 148448437 - 2⁷ = 148448309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148448393 and 148448402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148448431) 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, 4366114 + ... + 4366147.

It is an arithmetic number, because the mean of its divisors is an integer number (39295179).

Almost surely, 2^148448437 is an apocalyptic number.

148448437 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

148448437 is a deficient number, since it is larger than the sum of its proper divisors (8732279).

148448437 is an equidigital number, since it uses as much as digits as its factorization.

148448437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8732278.

The product of its digits is 344064, while the sum is 43.

The square root of 148448437 is about 12183.9417677532. The cubic root of 148448437 is about 529.4909518395.

The spelling of 148448437 in words is "one hundred forty-eight million, four hundred forty-eight thousand, four hundred thirty-seven".