148404509 has 8 divisors (see below), whose sum is σ = 171419328. Its totient is φ = 126976960.

The previous prime is 148404499. The next prime is 148404511. The reversal of 148404509 is 905404841.

It is a happy number.

148404509 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 de Polignac number, because none of the positive numbers 2^k-148404509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148404559) 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, 396617 + ... + 396990.

It is an arithmetic number, because the mean of its divisors is an integer number (21427416).

Almost surely, 2^148404509 is an apocalyptic number.

It is an amenable number.

148404509 is a deficient number, since it is larger than the sum of its proper divisors (23014819).

148404509 is a wasteful number, since it uses less digits than its factorization.

148404509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793635.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 148404509 is about 12182.1389337013. The cubic root of 148404509 is about 529.4387187238.

The spelling of 148404509 in words is "one hundred forty-eight million, four hundred four thousand, five hundred nine".