136223029 has 2 divisors, whose sum is σ = 136223030. Its totient is φ = 136223028.

The previous prime is 136222991. The next prime is 136223039. The reversal of 136223029 is 920322631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76160529 + 60062500 = 8727^2 + 7750^2 .

It is an emirp because it is prime and its reverse (920322631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136223029 - 2¹⁵ = 136190261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136222988 and 136223006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136223039) 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, 68111514 + 68111515.

It is an arithmetic number, because the mean of its divisors is an integer number (68111515).

Almost surely, 2^136223029 is an apocalyptic number.

It is an amenable number.

136223029 is a deficient number, since it is larger than the sum of its proper divisors (1).

136223029 is an equidigital number, since it uses as much as digits as its factorization.

136223029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 136223029 is about 11671.4621620429. The cubic root of 136223029 is about 514.5372775265.

The spelling of 136223029 in words is "one hundred thirty-six million, two hundred twenty-three thousand, twenty-nine".