135460397 has 2 divisors, whose sum is σ = 135460398. Its totient is φ = 135460396.

The previous prime is 135460387. The next prime is 135460411. The reversal of 135460397 is 793064531.

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., 80389156 + 55071241 = 8966^2 + 7421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135460397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135460397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135460307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67730198 + 67730199.

It is an arithmetic number, because the mean of its divisors is an integer number (67730199).

Almost surely, 2^135460397 is an apocalyptic number.

It is an amenable number.

135460397 is a deficient number, since it is larger than the sum of its proper divisors (1).

135460397 is an equidigital number, since it uses as much as digits as its factorization.

135460397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 135460397 is about 11638.7455080004. The cubic root of 135460397 is about 513.5752836588.

The spelling of 135460397 in words is "one hundred thirty-five million, four hundred sixty thousand, three hundred ninety-seven".