136551013 has 2 divisors, whose sum is σ = 136551014. Its totient is φ = 136551012.

The previous prime is 136551011. The next prime is 136551031. The reversal of 136551013 is 310155631.

Together with next prime (136551031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75742209 + 60808804 = 8703^2 + 7798^2 .

It is an emirp because it is prime and its reverse (310155631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136551013 - 2¹ = 136551011 is a prime.

Together with 136551011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136551011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68275506 + 68275507.

It is an arithmetic number, because the mean of its divisors is an integer number (68275507).

Almost surely, 2^136551013 is an apocalyptic number.

It is an amenable number.

136551013 is a deficient number, since it is larger than the sum of its proper divisors (1).

136551013 is an equidigital number, since it uses as much as digits as its factorization.

136551013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 136551013 is about 11685.5043964734. The cubic root of 136551013 is about 514.9498967816.

The spelling of 136551013 in words is "one hundred thirty-six million, five hundred fifty-one thousand, thirteen".