135978301 has 2 divisors, whose sum is σ = 135978302. Its totient is φ = 135978300.

The previous prime is 135978289. The next prime is 135978329. The reversal of 135978301 is 103879531.

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., 80460900 + 55517401 = 8970^2 + 7451^2 .

It is a cyclic number.

It is not a de Polignac number, because 135978301 - 2²¹ = 133881149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135978331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67989150 + 67989151.

It is an arithmetic number, because the mean of its divisors is an integer number (67989151).

Almost surely, 2^135978301 is an apocalyptic number.

It is an amenable number.

135978301 is a deficient number, since it is larger than the sum of its proper divisors (1).

135978301 is an equidigital number, since it uses as much as digits as its factorization.

135978301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 135978301 is about 11660.9734156287. The cubic root of 135978301 is about 514.2289665597.

The spelling of 135978301 in words is "one hundred thirty-five million, nine hundred seventy-eight thousand, three hundred one".