134686320 has 160 divisors (see below), whose sum is σ = 442066944. Its totient is φ = 33868800.

The previous prime is 134686309. The next prime is 134686337. The reversal of 134686320 is 23686431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319710 + ... + 320130.

Almost surely, 2^134686320 is an apocalyptic number.

134686320 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 134686320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221033472).

134686320 is an abundant number, since it is smaller than the sum of its proper divisors (307380624).

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

134686320 is a wasteful number, since it uses less digits than its factorization.

134686320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 134686320 is about 11605.4435503345. The cubic root of 134686320 is about 512.5951534605.

The spelling of 134686320 in words is "one hundred thirty-four million, six hundred eighty-six thousand, three hundred twenty".