135126023 has 2 divisors, whose sum is σ = 135126024. Its totient is φ = 135126022.

The previous prime is 135125999. The next prime is 135126031. The reversal of 135126023 is 320621531.

It is a strong prime.

It is an emirp because it is prime and its reverse (320621531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135126023 - 2¹² = 135121927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135126023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135126053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67563011 + 67563012.

It is an arithmetic number, because the mean of its divisors is an integer number (67563012).

Almost surely, 2^135126023 is an apocalyptic number.

135126023 is a deficient number, since it is larger than the sum of its proper divisors (1).

135126023 is an equidigital number, since it uses as much as digits as its factorization.

135126023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 135126023 is about 11624.3719400233. The cubic root of 135126023 is about 513.1523612459.

Adding to 135126023 its reverse (320621531), we get a palindrome (455747554).

The spelling of 135126023 in words is "one hundred thirty-five million, one hundred twenty-six thousand, twenty-three".