136520113 has 2 divisors, whose sum is σ = 136520114. Its totient is φ = 136520112.

The previous prime is 136520107. The next prime is 136520173. The reversal of 136520113 is 311025631.

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., 99760144 + 36759969 = 9988^2 + 6063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136520113 is a prime.

It is not a weakly prime, because it can be changed into another prime (136520173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68260056 + 68260057.

It is an arithmetic number, because the mean of its divisors is an integer number (68260057).

Almost surely, 2^136520113 is an apocalyptic number.

It is an amenable number.

136520113 is a deficient number, since it is larger than the sum of its proper divisors (1).

136520113 is an equidigital number, since it uses as much as digits as its factorization.

136520113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 136520113 is about 11684.1821707811. The cubic root of 136520113 is about 514.9110513424.

Adding to 136520113 its reverse (311025631), we get a palindrome (447545744).

The spelling of 136520113 in words is "one hundred thirty-six million, five hundred twenty thousand, one hundred thirteen".