149128 has 16 divisors (see below), whose sum is σ = 319680. Its totient is φ = 63888.

The previous prime is 149119. The next prime is 149143. The reversal of 149128 is 821941.

It is a happy number.

It is a plaindrome in base 16.

It is a nialpdrome in base 8.

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, 1276 + ... + 1387.

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

2¹⁴⁹¹²⁸ is an apocalyptic number.

It is an amenable number.

149128 is an abundant number, since it is smaller than the sum of its proper divisors (170552).

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

149128 is a wasteful number, since it uses less digits than its factorization.

149128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676 (or 2672 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 149128 is about 386.1709466027. The cubic root of 149128 is about 53.0297684910.

The spelling of 149128 in words is "one hundred forty-nine thousand, one hundred twenty-eight".