136548247 has 4 divisors (see below), whose sum is σ = 148961736. Its totient is φ = 124134760.

The previous prime is 136548239. The next prime is 136548253. The reversal of 136548247 is 742845631.

136548247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742845631 = 11 ⋅67531421.

It is a cyclic number.

It is not a de Polignac number, because 136548247 - 2³ = 136548239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136548227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6206728 + ... + 6206749.

It is an arithmetic number, because the mean of its divisors is an integer number (37240434).

Almost surely, 2^136548247 is an apocalyptic number.

136548247 is a deficient number, since it is larger than the sum of its proper divisors (12413489).

136548247 is a wasteful number, since it uses less digits than its factorization.

136548247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12413488.

The product of its digits is 161280, while the sum is 40.

The square root of 136548247 is about 11685.3860441151. The cubic root of 136548247 is about 514.9464197879.

The spelling of 136548247 in words is "one hundred thirty-six million, five hundred forty-eight thousand, two hundred forty-seven".