128148534 has 32 divisors (see below), whose sum is σ = 291725280. Its totient is φ = 41673600.

The previous prime is 128148491. The next prime is 128148569. The reversal of 128148534 is 435841821.

128148534 is a `hidden beast` number, since 1 + 2 + 81 + 48 + 534 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26727 + ... + 31154.

It is an arithmetic number, because the mean of its divisors is an integer number (9116415).

Almost surely, 2^128148534 is an apocalyptic number.

128148534 is an abundant number, since it is smaller than the sum of its proper divisors (163576746).

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

128148534 is a wasteful number, since it uses less digits than its factorization.

128148534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57933 (or 57927 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 128148534 is about 11320.2709331535. The cubic root of 128148534 is about 504.1632832624.

The spelling of 128148534 in words is "one hundred twenty-eight million, one hundred forty-eight thousand, five hundred thirty-four".