136018429 has 2 divisors, whose sum is σ = 136018430. Its totient is φ = 136018428.

The previous prime is 136018427. The next prime is 136018457. The reversal of 136018429 is 924810631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86527204 + 49491225 = 9302^2 + 7035^2 .

It is a cyclic number.

It is not a de Polignac number, because 136018429 - 2¹ = 136018427 is a prime.

Together with 136018427, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 136018394 and 136018403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136018427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68009214 + 68009215.

It is an arithmetic number, because the mean of its divisors is an integer number (68009215).

Almost surely, 2^136018429 is an apocalyptic number.

It is an amenable number.

136018429 is a deficient number, since it is larger than the sum of its proper divisors (1).

136018429 is an equidigital number, since it uses as much as digits as its factorization.

136018429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 136018429 is about 11662.6938997815. The cubic root of 136018429 is about 514.2795455866.

The spelling of 136018429 in words is "one hundred thirty-six million, eighteen thousand, four hundred twenty-nine".