136729447 has 2 divisors, whose sum is σ = 136729448. Its totient is φ = 136729446.

The previous prime is 136729441. The next prime is 136729507. The reversal of 136729447 is 744927631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136729447 - 2¹¹ = 136727399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136729441) 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 as a sum of consecutive naturals, namely, 68364723 + 68364724.

It is an arithmetic number, because the mean of its divisors is an integer number (68364724).

Almost surely, 2^136729447 is an apocalyptic number.

136729447 is a deficient number, since it is larger than the sum of its proper divisors (1).

136729447 is an equidigital number, since it uses as much as digits as its factorization.

136729447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The square root of 136729447 is about 11693.1367476824. The cubic root of 136729447 is about 515.1740976728.

The spelling of 136729447 in words is "one hundred thirty-six million, seven hundred twenty-nine thousand, four hundred forty-seven".