135615497 has 2 divisors, whose sum is σ = 135615498. Its totient is φ = 135615496.

The previous prime is 135615463. The next prime is 135615541. The reversal of 135615497 is 794516531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135582736 + 32761 = 11644^2 + 181^2 .

It is a cyclic number.

It is not a de Polignac number, because 135615497 - 2⁶ = 135615433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135215497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67807748 + 67807749.

It is an arithmetic number, because the mean of its divisors is an integer number (67807749).

Almost surely, 2^135615497 is an apocalyptic number.

It is an amenable number.

135615497 is a deficient number, since it is larger than the sum of its proper divisors (1).

135615497 is an equidigital number, since it uses as much as digits as its factorization.

135615497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 41.

The square root of 135615497 is about 11645.4066910521. The cubic root of 135615497 is about 513.7712207399.

The spelling of 135615497 in words is "one hundred thirty-five million, six hundred fifteen thousand, four hundred ninety-seven".