136545067 has 4 divisors (see below), whose sum is σ = 136574280. Its totient is φ = 136515856.

The previous prime is 136545061. The next prime is 136545083. The reversal of 136545067 is 760545631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 760545631 = 241 ⋅3155791.

It is a 4-Lehmer number, since φ(136545067) divides (136545067-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 136545067 - 2¹⁹ = 136020779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136545061) 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 3 ways as a sum of consecutive naturals, for example, 5842 + ... + 17527.

It is an arithmetic number, because the mean of its divisors is an integer number (34143570).

It is a Poulet number, since it divides 2^136545066-1.

Almost surely, 2^136545067 is an apocalyptic number.

136545067 is the 5843-rd decagonal number.

136545067 is a deficient number, since it is larger than the sum of its proper divisors (29213).

136545067 is an equidigital number, since it uses as much as digits as its factorization.

136545067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29212.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 136545067 is about 11685.2499759312. The cubic root of 136545067 is about 514.9424223184.

It can be divided in two parts, 13654 and 5067, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 136545067 in words is "one hundred thirty-six million, five hundred forty-five thousand, sixty-seven".