135597647 has 2 divisors, whose sum is σ = 135597648. Its totient is φ = 135597646.

The previous prime is 135597643. The next prime is 135597667. The reversal of 135597647 is 746795531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135597647 - 2² = 135597643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135597643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67798823 + 67798824.

It is an arithmetic number, because the mean of its divisors is an integer number (67798824).

Almost surely, 2^135597647 is an apocalyptic number.

135597647 is a deficient number, since it is larger than the sum of its proper divisors (1).

135597647 is an equidigital number, since it uses as much as digits as its factorization.

135597647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793800, while the sum is 47.

The square root of 135597647 is about 11644.6402692398. The cubic root of 135597647 is about 513.7486785307.

The spelling of 135597647 in words is "one hundred thirty-five million, five hundred ninety-seven thousand, six hundred forty-seven".