148138404 has 12 divisors (see below), whose sum is σ = 345656304. Its totient is φ = 49379464.

The previous prime is 148138387. The next prime is 148138427. The reversal of 148138404 is 404831841.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6172422 + ... + 6172445.

It is an arithmetic number, because the mean of its divisors is an integer number (28804692).

Almost surely, 2^148138404 is an apocalyptic number.

It is an amenable number.

148138404 is an abundant number, since it is smaller than the sum of its proper divisors (197517900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148138404 is a wasteful number, since it uses less digits than its factorization.

148138404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12344874 (or 12344872 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 148138404 is about 12171.2121006907. The cubic root of 148138404 is about 529.1220828318.

The spelling of 148138404 in words is "one hundred forty-eight million, one hundred thirty-eight thousand, four hundred four".