134638256 has 40 divisors (see below), whose sum is σ = 276024000. Its totient is φ = 63443520.

The previous prime is 134638243. The next prime is 134638307. The reversal of 134638256 is 652836431.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63095 + ... + 65193.

It is an arithmetic number, because the mean of its divisors is an integer number (6900600).

Almost surely, 2^134638256 is an apocalyptic number.

134638256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134638256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138012000).

134638256 is an abundant number, since it is smaller than the sum of its proper divisors (141385744).

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

134638256 is a wasteful number, since it uses less digits than its factorization.

134638256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337 (or 2331 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 134638256 is about 11603.3726131673. The cubic root of 134638256 is about 512.5341715070.

The spelling of 134638256 in words is "one hundred thirty-four million, six hundred thirty-eight thousand, two hundred fifty-six".