134586660 has 96 divisors (see below), whose sum is σ = 409812480. Its totient is φ = 32804352.

The previous prime is 134586659. The next prime is 134586667. The reversal of 134586660 is 66685431.

It is a super-2 number, since 2×134586660² = 36227138099911200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (134586667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84229 + ... + 85811.

It is an arithmetic number, because the mean of its divisors is an integer number (4268880).

Almost surely, 2^134586660 is an apocalyptic number.

134586660 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 134586660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204906240).

134586660 is an abundant number, since it is smaller than the sum of its proper divisors (275225820).

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

134586660 is a wasteful number, since it uses less digits than its factorization.

134586660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 134586660 is about 11601.1490810178. The cubic root of 134586660 is about 512.4686921188.

Subtracting from 134586660 its sum of digits (39), we obtain a triangular number (134586621 = T₁₆₄₀₆).

The spelling of 134586660 in words is "one hundred thirty-four million, five hundred eighty-six thousand, six hundred sixty".