136081 has 8 divisors (see below), whose sum is σ = 151200. Its totient is φ = 121440.

The previous prime is 136069. The next prime is 136093. The reversal of 136081 is 180631.

It is an interprime number because it is at equal distance from previous prime (136069) and next prime (136093).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136081 - 2¹¹ = 134033 is a prime.

It is a super-2 number, since 2×136081² = 37036077122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹³⁶⁰⁸¹ is an apocalyptic number.

136081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136081 is a deficient number, since it is larger than the sum of its proper divisors (15119).

136081 is a wasteful number, since it uses less digits than its factorization.

136081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 136081 is about 368.8915829888. The cubic root of 136081 is about 51.4358392874.

It can be divided in two parts, 1360 and 81, that added together give a palindrome (1441).

The spelling of 136081 in words is "one hundred thirty-six thousand, eighty-one".