136489547 has 2 divisors, whose sum is σ = 136489548. Its totient is φ = 136489546.

The previous prime is 136489537. The next prime is 136489571. The reversal of 136489547 is 745984631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136489547 - 2¹² = 136485451 is a prime.

It is not a weakly prime, because it can be changed into another prime (136489537) 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 as a sum of consecutive naturals, namely, 68244773 + 68244774.

It is an arithmetic number, because the mean of its divisors is an integer number (68244774).

Almost surely, 2^136489547 is an apocalyptic number.

136489547 is a deficient number, since it is larger than the sum of its proper divisors (1).

136489547 is an equidigital number, since it uses as much as digits as its factorization.

136489547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 136489547 is about 11682.8740898805. The cubic root of 136489547 is about 514.8726200188.

The spelling of 136489547 in words is "one hundred thirty-six million, four hundred eighty-nine thousand, five hundred forty-seven".