149278548 has 12 divisors (see below), whose sum is σ = 348316640. Its totient is φ = 49759512.

The previous prime is 149278517. The next prime is 149278553. The reversal of 149278548 is 845872941.

It is a happy number.

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

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 149278497 and 149278506.

It is a congruent number.

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, 6219928 + ... + 6219951.

Almost surely, 2^149278548 is an apocalyptic number.

It is an amenable number.

149278548 is an abundant number, since it is smaller than the sum of its proper divisors (199038092).

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

149278548 is a wasteful number, since it uses less digits than its factorization.

149278548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12439886 (or 12439884 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 149278548 is about 12217.9600588642. The cubic root of 149278548 is about 530.4760739579.

The spelling of 149278548 in words is "one hundred forty-nine million, two hundred seventy-eight thousand, five hundred forty-eight".