135725767 has 2 divisors, whose sum is σ = 135725768. Its totient is φ = 135725766.

The previous prime is 135725749. The next prime is 135725791. The reversal of 135725767 is 767527531.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135725767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135725717) 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, 67862883 + 67862884.

It is an arithmetic number, because the mean of its divisors is an integer number (67862884).

Almost surely, 2^135725767 is an apocalyptic number.

135725767 is a deficient number, since it is larger than the sum of its proper divisors (1).

135725767 is an equidigital number, since it uses as much as digits as its factorization.

135725767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 308700, while the sum is 43.

The square root of 135725767 is about 11650.1402137485. The cubic root of 135725767 is about 513.9104334541.

The spelling of 135725767 in words is "one hundred thirty-five million, seven hundred twenty-five thousand, seven hundred sixty-seven".