134561928 has 32 divisors (see below), whose sum is σ = 336938400. Its totient is φ = 44782848.

The previous prime is 134561923. The next prime is 134561951. The reversal of 134561928 is 829165431.

It is not an unprimeable number, because it can be changed into a prime (134561923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12288 + ... + 20496.

It is an arithmetic number, because the mean of its divisors is an integer number (10529325).

Almost surely, 2^134561928 is an apocalyptic number.

It is an amenable number.

134561928 is an abundant number, since it is smaller than the sum of its proper divisors (202376472).

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

134561928 is a wasteful number, since it uses less digits than its factorization.

134561928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8901 (or 8897 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 134561928 is about 11600.0831031506. The cubic root of 134561928 is about 512.4372993291.

The spelling of 134561928 in words is "one hundred thirty-four million, five hundred sixty-one thousand, nine hundred twenty-eight".