135125789 has 2 divisors, whose sum is σ = 135125790. Its totient is φ = 135125788.

The previous prime is 135125747. The next prime is 135125821. The reversal of 135125789 is 987521531.

135125789 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., 105062500 + 30063289 = 10250^2 + 5483^2 .

It is a cyclic number.

It is not a de Polignac number, because 135125789 - 2¹⁶ = 135060253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135125719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67562894 + 67562895.

It is an arithmetic number, because the mean of its divisors is an integer number (67562895).

Almost surely, 2^135125789 is an apocalyptic number.

It is an amenable number.

135125789 is a deficient number, since it is larger than the sum of its proper divisors (1).

135125789 is an equidigital number, since it uses as much as digits as its factorization.

135125789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 41.

The square root of 135125789 is about 11624.3618749590. The cubic root of 135125789 is about 513.1520650342.

The spelling of 135125789 in words is "one hundred thirty-five million, one hundred twenty-five thousand, seven hundred eighty-nine".