136543061 has 8 divisors (see below), whose sum is σ = 140967384. Its totient is φ = 132157440.

The previous prime is 136543039. The next prime is 136543073. The reversal of 136543061 is 160345631.

It is a happy number.

136543061 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 56100100 + 80442961 = 7490^2 + 8969^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136543061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136543081) 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, 2420 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (17620923).

Almost surely, 2^136543061 is an apocalyptic number.

It is an amenable number.

136543061 is a deficient number, since it is larger than the sum of its proper divisors (4424323).

136543061 is a wasteful number, since it uses less digits than its factorization.

136543061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19351.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 136543061 is about 11685.1641409096. The cubic root of 136543061 is about 514.9399006124.

Adding to 136543061 its reverse (160345631), we get a palindrome (296888692).

The spelling of 136543061 in words is "one hundred thirty-six million, five hundred forty-three thousand, sixty-one".