135125923 has 2 divisors, whose sum is σ = 135125924. Its totient is φ = 135125922.

The previous prime is 135125857. The next prime is 135125971. The reversal of 135125923 is 329521531.

135125923 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135125923 is a prime.

It is not a weakly prime, because it can be changed into another prime (135125323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67562961 + 67562962.

It is an arithmetic number, because the mean of its divisors is an integer number (67562962).

Almost surely, 2^135125923 is an apocalyptic number.

135125923 is a deficient number, since it is larger than the sum of its proper divisors (1).

135125923 is an equidigital number, since it uses as much as digits as its factorization.

135125923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 31.

The square root of 135125923 is about 11624.3676387148. The cubic root of 135125923 is about 513.1522346598.

The spelling of 135125923 in words is "one hundred thirty-five million, one hundred twenty-five thousand, nine hundred twenty-three".