135946897 has 2 divisors, whose sum is σ = 135946898. Its totient is φ = 135946896.

The previous prime is 135946883. The next prime is 135946907. The reversal of 135946897 is 798649531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89038096 + 46908801 = 9436^2 + 6849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135946897 is a prime.

It is not a weakly prime, because it can be changed into another prime (135946847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67973448 + 67973449.

It is an arithmetic number, because the mean of its divisors is an integer number (67973449).

Almost surely, 2^135946897 is an apocalyptic number.

It is an amenable number.

135946897 is a deficient number, since it is larger than the sum of its proper divisors (1).

135946897 is an equidigital number, since it uses as much as digits as its factorization.

135946897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 135946897 is about 11659.6267950565. The cubic root of 135946897 is about 514.1893766896.

The spelling of 135946897 in words is "one hundred thirty-five million, nine hundred forty-six thousand, eight hundred ninety-seven".