134256660 has 192 divisors, whose sum is σ = 425779200. Its totient is φ = 31449600.

The previous prime is 134256613. The next prime is 134256719. The reversal of 134256660 is 66652431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1024795 + ... + 1024925.

It is an arithmetic number, because the mean of its divisors is an integer number (2217600).

Almost surely, 2^134256660 is an apocalyptic number.

134256660 is a gapful number since it is divisible by the number (10) 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 134256660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212889600).

134256660 is an abundant number, since it is smaller than the sum of its proper divisors (291522540).

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

134256660 is a wasteful number, since it uses less digits than its factorization.

134256660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 134256660 is about 11586.9176229056. The cubic root of 134256660 is about 512.0494998122.

The spelling of 134256660 in words is "one hundred thirty-four million, two hundred fifty-six thousand, six hundred sixty".