136312117 has 2 divisors, whose sum is σ = 136312118. Its totient is φ = 136312116.

The previous prime is 136312109. The next prime is 136312139. The reversal of 136312117 is 711213631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135512881 + 799236 = 11641^2 + 894^2 .

It is an emirp because it is prime and its reverse (711213631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136312117 - 2³ = 136312109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136312091 and 136312100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136312217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68156058 + 68156059.

It is an arithmetic number, because the mean of its divisors is an integer number (68156059).

Almost surely, 2^136312117 is an apocalyptic number.

It is an amenable number.

136312117 is a deficient number, since it is larger than the sum of its proper divisors (1).

136312117 is an equidigital number, since it uses as much as digits as its factorization.

136312117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 25.

The square root of 136312117 is about 11675.2780266681. The cubic root of 136312117 is about 514.6494198670.

Adding to 136312117 its reverse (711213631), we get a palindrome (847525748).

The spelling of 136312117 in words is "one hundred thirty-six million, three hundred twelve thousand, one hundred seventeen".