136072229 has 2 divisors, whose sum is σ = 136072230. Its totient is φ = 136072228.

The previous prime is 136072213. The next prime is 136072241. The reversal of 136072229 is 922270631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136072225 + 4 = 11665^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 136072229 - 2⁴ = 136072213 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 136072195 and 136072204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136072249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68036114 + 68036115.

It is an arithmetic number, because the mean of its divisors is an integer number (68036115).

Almost surely, 2^136072229 is an apocalyptic number.

It is an amenable number.

136072229 is a deficient number, since it is larger than the sum of its proper divisors (1).

136072229 is an equidigital number, since it uses as much as digits as its factorization.

136072229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 136072229 is about 11665.0001714531. Note that the first 3 decimals coincide. The cubic root of 136072229 is about 514.3473417734.

The spelling of 136072229 in words is "one hundred thirty-six million, seventy-two thousand, two hundred twenty-nine".