136326529 has 2 divisors, whose sum is σ = 136326530. Its totient is φ = 136326528.

The previous prime is 136326511. The next prime is 136326557. The reversal of 136326529 is 925623631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136258929 + 67600 = 11673^2 + 260^2 .

It is an emirp because it is prime and its reverse (925623631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136326529 - 2¹¹ = 136324481 is a prime.

It is not a weakly prime, because it can be changed into another prime (136326559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68163264 + 68163265.

It is an arithmetic number, because the mean of its divisors is an integer number (68163265).

Almost surely, 2^136326529 is an apocalyptic number.

It is an amenable number.

136326529 is a deficient number, since it is larger than the sum of its proper divisors (1).

136326529 is an equidigital number, since it uses as much as digits as its factorization.

136326529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The square root of 136326529 is about 11675.8952119313. The cubic root of 136326529 is about 514.6675568363.

The spelling of 136326529 in words is "one hundred thirty-six million, three hundred twenty-six thousand, five hundred twenty-nine".