128134237 has 16 divisors (see below), whose sum is σ = 161021952. Its totient is φ = 99051120.

The previous prime is 128134229. The next prime is 128134243. The reversal of 128134237 is 732431821.

It is not a de Polignac number, because 128134237 - 2³ = 128134229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128134199 and 128134208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128134247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3228 + ... + 16330.

It is an arithmetic number, because the mean of its divisors is an integer number (10063872).

Almost surely, 2^128134237 is an apocalyptic number.

It is an amenable number.

128134237 is a deficient number, since it is larger than the sum of its proper divisors (32887715).

128134237 is a wasteful number, since it uses less digits than its factorization.

128134237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13248.

The product of its digits is 8064, while the sum is 31.

The square root of 128134237 is about 11319.6394377206. The cubic root of 128134237 is about 504.1445334302.

The spelling of 128134237 in words is "one hundred twenty-eight million, one hundred thirty-four thousand, two hundred thirty-seven".