136580 has 12 divisors (see below), whose sum is σ = 286860. Its totient is φ = 54624.

The previous prime is 136573. The next prime is 136601. The reversal of 136580 is 85631.

It can be written as a sum of positive squares in 2 ways, for example, as 61504 + 75076 = 248^2 + 274^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3395 + ... + 3434.

It is an arithmetic number, because the mean of its divisors is an integer number (23905).

2¹³⁶⁵⁸⁰ is an apocalyptic number.

136580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136580 is an abundant number, since it is smaller than the sum of its proper divisors (150280).

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

136580 is a wasteful number, since it uses less digits than its factorization.

136580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6838 (or 6836 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 136580 is about 369.5673145721. The cubic root of 136580 is about 51.4986331997.

The spelling of 136580 in words is "one hundred thirty-six thousand, five hundred eighty".