136664547 has 8 divisors (see below), whose sum is σ = 192938256. Its totient is φ = 85750272.

The previous prime is 136664543. The next prime is 136664629. The reversal of 136664547 is 745466631.

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

It is not a de Polignac number, because 136664547 - 2² = 136664543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136664499 and 136664508.

It is not an unprimeable number, because it can be changed into a prime (136664543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1339798 + ... + 1339899.

It is an arithmetic number, because the mean of its divisors is an integer number (24117282).

Almost surely, 2^136664547 is an apocalyptic number.

136664547 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

136664547 is a deficient number, since it is larger than the sum of its proper divisors (56273709).

136664547 is a wasteful number, since it uses less digits than its factorization.

136664547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679717.

The product of its digits is 362880, while the sum is 42.

The square root of 136664547 is about 11690.3612861194. The cubic root of 136664547 is about 515.0925739261.

The spelling of 136664547 in words is "one hundred thirty-six million, six hundred sixty-four thousand, five hundred forty-seven".