135577613 has 2 divisors, whose sum is σ = 135577614. Its totient is φ = 135577612.

The previous prime is 135577609. The next prime is 135577627. The reversal of 135577613 is 316775531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115390564 + 20187049 = 10742^2 + 4493^2 .

It is a cyclic number.

It is not a de Polignac number, because 135577613 - 2² = 135577609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135577913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67788806 + 67788807.

It is an arithmetic number, because the mean of its divisors is an integer number (67788807).

Almost surely, 2^135577613 is an apocalyptic number.

It is an amenable number.

135577613 is a deficient number, since it is larger than the sum of its proper divisors (1).

135577613 is an equidigital number, since it uses as much as digits as its factorization.

135577613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 38.

The square root of 135577613 is about 11643.7800133805. The cubic root of 135577613 is about 513.7233758597.

The spelling of 135577613 in words is "one hundred thirty-five million, five hundred seventy-seven thousand, six hundred thirteen".