148905 has 16 divisors (see below), whose sum is σ = 264960. Its totient is φ = 79344.

The previous prime is 148891. The next prime is 148913. The reversal of 148905 is 509841.

It is not a de Polignac number, because 148905 - 2⁵ = 148873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417 + ... + 686.

It is an arithmetic number, because the mean of its divisors is an integer number (16560).

2¹⁴⁸⁹⁰⁵ is an apocalyptic number.

148905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148905 is a deficient number, since it is larger than the sum of its proper divisors (116055).

148905 is a wasteful number, since it uses less digits than its factorization.

148905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 148905 is about 385.8821063486. The cubic root of 148905 is about 53.0033224451.

The spelling of 148905 in words is "one hundred forty-eight thousand, nine hundred five".