136212081 has 8 divisors (see below), whose sum is σ = 182070624. Its totient is φ = 90580800.

The previous prime is 136212079. The next prime is 136212103. The reversal of 136212081 is 180212631.

136212081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 136212081 - 2¹ = 136212079 is a prime.

It is a super-2 number, since 2×136212081² = 37107462020701122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (136212071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55411 + ... + 57816.

It is an arithmetic number, because the mean of its divisors is an integer number (22758828).

Almost surely, 2^136212081 is an apocalyptic number.

It is an amenable number.

136212081 is a deficient number, since it is larger than the sum of its proper divisors (45858543).

136212081 is a wasteful number, since it uses less digits than its factorization.

136212081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113631.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 136212081 is about 11670.9931454011. The cubic root of 136212081 is about 514.5234930118.

The spelling of 136212081 in words is "one hundred thirty-six million, two hundred twelve thousand, eighty-one".