148391385 has 24 divisors (see below), whose sum is σ = 252221376. Its totient is φ = 74484480.

The previous prime is 148391371. The next prime is 148391417. The reversal of 148391385 is 583193841.

It is not a de Polignac number, because 148391385 - 2¹⁷ = 148260313 is a prime.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 12781 + ... + 21450.

It is an arithmetic number, because the mean of its divisors is an integer number (10509224).

Almost surely, 2^148391385 is an apocalyptic number.

148391385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148391385 is a deficient number, since it is larger than the sum of its proper divisors (103829991).

148391385 is a wasteful number, since it uses less digits than its factorization.

148391385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34273 (or 34256 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 148391385 is about 12181.6002643331. The cubic root of 148391385 is about 529.4231114743.

The spelling of 148391385 in words is "one hundred forty-eight million, three hundred ninety-one thousand, three hundred eighty-five".