135798653 has 2 divisors, whose sum is σ = 135798654. Its totient is φ = 135798652.

The previous prime is 135798623. The next prime is 135798671. The reversal of 135798653 is 356897531.

135798653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135187129 + 611524 = 11627^2 + 782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135798653 is a prime.

It is a super-2 number, since 2×135798653² = 36882548313228818, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 135798598 and 135798607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135798623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67899326 + 67899327.

It is an arithmetic number, because the mean of its divisors is an integer number (67899327).

Almost surely, 2^135798653 is an apocalyptic number.

It is an amenable number.

135798653 is a deficient number, since it is larger than the sum of its proper divisors (1).

135798653 is an equidigital number, since it uses as much as digits as its factorization.

135798653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 135798653 is about 11653.2679107622. The cubic root of 135798653 is about 514.0024085541.

The spelling of 135798653 in words is "one hundred thirty-five million, seven hundred ninety-eight thousand, six hundred fifty-three".