148409 has 8 divisors (see below), whose sum is σ = 159840. Its totient is φ = 137376.

The previous prime is 148403. The next prime is 148411. The reversal of 148409 is 904841.

148409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 148409 - 2⁸ = 148153 is a prime.

It is a Duffinian number.

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 148409.

It is not an unprimeable number, because it can be changed into a prime (148403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 1440.

It is an arithmetic number, because the mean of its divisors is an integer number (19980).

2¹⁴⁸⁴⁰⁹ is an apocalyptic number.

148409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

148409 is a deficient number, since it is larger than the sum of its proper divisors (11431).

148409 is a wasteful number, since it uses less digits than its factorization.

148409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 148409 is about 385.2388869260. The cubic root of 148409 is about 52.9444059274.

The spelling of 148409 in words is "one hundred forty-eight thousand, four hundred nine".