148903405 has 12 divisors (see below), whose sum is σ = 207857340. Its totient is φ = 102105024.

The previous prime is 148903397. The next prime is 148903421. The reversal of 148903405 is 504309841.

It can be written as a sum of positive squares in 2 ways, for example, as 91431844 + 57471561 = 9562^2 + 7581^2 .

It is not a de Polignac number, because 148903405 - 2³ = 148903397 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 303640 + ... + 304129.

It is an arithmetic number, because the mean of its divisors is an integer number (17321445).

Almost surely, 2^148903405 is an apocalyptic number.

It is an amenable number.

148903405 is a deficient number, since it is larger than the sum of its proper divisors (58953935).

148903405 is an equidigital number, since it uses as much as digits as its factorization.

148903405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607788 (or 607781 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 148903405 is about 12202.5982888891. The cubic root of 148903405 is about 530.0313319557.

The spelling of 148903405 in words is "one hundred forty-eight million, nine hundred three thousand, four hundred five".