136036381 has 12 divisors (see below), whose sum is σ = 148391040. Its totient is φ = 124647120.

The previous prime is 136036367. The next prime is 136036393. The reversal of 136036381 is 183630631.

It is not a de Polignac number, because 136036381 - 2⁵ = 136036349 is a prime.

It is a super-2 number, since 2×136036381² = 37011793911154322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136036321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20596 + ... + 26386.

It is an arithmetic number, because the mean of its divisors is an integer number (12365920).

Almost surely, 2^136036381 is an apocalyptic number.

It is an amenable number.

136036381 is a deficient number, since it is larger than the sum of its proper divisors (12354659).

136036381 is a wasteful number, since it uses less digits than its factorization.

136036381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5956 (or 5943 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 136036381 is about 11663.4635078951. The cubic root of 136036381 is about 514.3021698255.

The spelling of 136036381 in words is "one hundred thirty-six million, thirty-six thousand, three hundred eighty-one".