128008134 has 32 divisors (see below), whose sum is σ = 289133280. Its totient is φ = 41968800.

The previous prime is 128008099. The next prime is 128008141. The reversal of 128008134 is 431800821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 128008098 and 128008107.

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, 16137 + ... + 22724.

It is an arithmetic number, because the mean of its divisors is an integer number (9035415).

Almost surely, 2^128008134 is an apocalyptic number.

128008134 is an abundant number, since it is smaller than the sum of its proper divisors (161125146).

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

128008134 is a wasteful number, since it uses less digits than its factorization.

128008134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38933 (or 38927 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 128008134 is about 11314.0679686839. The cubic root of 128008134 is about 503.9790949379.

Adding to 128008134 its reverse (431800821), we get a palindrome (559808955).

The spelling of 128008134 in words is "one hundred twenty-eight million, eight thousand, one hundred thirty-four".