136305434 has 4 divisors (see below), whose sum is σ = 204458154. Its totient is φ = 68152716.

The previous prime is 136305413. The next prime is 136305437. The reversal of 136305434 is 434503631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 128482225 + 7823209 = 11335^2 + 2797^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136305397 and 136305406.

It is not an unprimeable number, because it can be changed into a prime (136305437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34076357 + ... + 34076360.

Almost surely, 2^136305434 is an apocalyptic number.

136305434 is a deficient number, since it is larger than the sum of its proper divisors (68152720).

136305434 is an equidigital number, since it uses as much as digits as its factorization.

136305434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68152719.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 136305434 is about 11674.9918201256. The cubic root of 136305434 is about 514.6410091246.

The spelling of 136305434 in words is "one hundred thirty-six million, three hundred five thousand, four hundred thirty-four".