135252045427 has 2 divisors, whose sum is σ = 135252045428. Its totient is φ = 135252045426.

The previous prime is 135252045343. The next prime is 135252045449. The reversal of 135252045427 is 724540252531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135252045427 is a prime.

It is a super-2 number, since 2×135252045427² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135252045427.

It is not a weakly prime, because it can be changed into another prime (135252045127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67626022713 + 67626022714.

It is an arithmetic number, because the mean of its divisors is an integer number (67626022714).

Almost surely, 2^135252045427 is an apocalyptic number.

135252045427 is a deficient number, since it is larger than the sum of its proper divisors (1).

135252045427 is an equidigital number, since it uses as much as digits as its factorization.

135252045427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336000, while the sum is 40.

Adding to 135252045427 its reverse (724540252531), we get a palindrome (859792297958).

The spelling of 135252045427 in words is "one hundred thirty-five billion, two hundred fifty-two million, forty-five thousand, four hundred twenty-seven".