128849148 has 36 divisors (see below), whose sum is σ = 331852248. Its totient is φ = 42138720.

The previous prime is 128849143. The next prime is 128849159. The reversal of 128849148 is 841948821.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128849143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31858 + ... + 35673.

It is an arithmetic number, because the mean of its divisors is an integer number (9218118).

Almost surely, 2^128849148 is an apocalyptic number.

128849148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128849148 is an abundant number, since it is smaller than the sum of its proper divisors (203003100).

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

128849148 is a wasteful number, since it uses less digits than its factorization.

128849148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67594 (or 67589 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 128849148 is about 11351.1738600023. The cubic root of 128849148 is about 505.0804015370.

The spelling of 128849148 in words is "one hundred twenty-eight million, eight hundred forty-nine thousand, one hundred forty-eight".