136242641 has 8 divisors (see below), whose sum is σ = 144398664. Its totient is φ = 128102400.

The previous prime is 136242581. The next prime is 136242649. The reversal of 136242641 is 146242631.

136242641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2262016 + 133980625 = 1504^2 + 11575^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 136242641 - 2²⁶ = 69133777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136242649) 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, 17081 + ... + 23753.

It is an arithmetic number, because the mean of its divisors is an integer number (18049833).

Almost surely, 2^136242641 is an apocalyptic number.

It is an amenable number.

136242641 is a deficient number, since it is larger than the sum of its proper divisors (8156023).

136242641 is a wasteful number, since it uses less digits than its factorization.

136242641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7891.

The product of its digits is 6912, while the sum is 29.

The square root of 136242641 is about 11672.3023007460. The cubic root of 136242641 is about 514.5619689484.

The spelling of 136242641 in words is "one hundred thirty-six million, two hundred forty-two thousand, six hundred forty-one".