136028813 has 2 divisors, whose sum is σ = 136028814. Its totient is φ = 136028812.

The previous prime is 136028801. The next prime is 136028833. The reversal of 136028813 is 318820631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136002244 + 26569 = 11662^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 136028813 - 2⁶ = 136028749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136028813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136028833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68014406 + 68014407.

It is an arithmetic number, because the mean of its divisors is an integer number (68014407).

Almost surely, 2^136028813 is an apocalyptic number.

It is an amenable number.

136028813 is a deficient number, since it is larger than the sum of its proper divisors (1).

136028813 is an equidigital number, since it uses as much as digits as its factorization.

136028813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 136028813 is about 11663.1390714507. The cubic root of 136028813 is about 514.2926323989.

The spelling of 136028813 in words is "one hundred thirty-six million, twenty-eight thousand, eight hundred thirteen".