135678793 has 2 divisors, whose sum is σ = 135678794. Its totient is φ = 135678792.

The previous prime is 135678779. The next prime is 135678833. The reversal of 135678793 is 397876531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118439689 + 17239104 = 10883^2 + 4152^2 .

It is a cyclic number.

It is not a de Polignac number, because 135678793 - 2²⁵ = 102124361 is a prime.

It is not a weakly prime, because it can be changed into another prime (135678703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67839396 + 67839397.

It is an arithmetic number, because the mean of its divisors is an integer number (67839397).

Almost surely, 2^135678793 is an apocalyptic number.

It is an amenable number.

135678793 is a deficient number, since it is larger than the sum of its proper divisors (1).

135678793 is an equidigital number, since it uses as much as digits as its factorization.

135678793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The square root of 135678793 is about 11648.1240120459. The cubic root of 135678793 is about 513.8511393478.

The spelling of 135678793 in words is "one hundred thirty-five million, six hundred seventy-eight thousand, seven hundred ninety-three".