135911525587 has 2 divisors, whose sum is σ = 135911525588. Its totient is φ = 135911525586.

The previous prime is 135911525551. The next prime is 135911525609. The reversal of 135911525587 is 785525119531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135911525587 - 2²³ = 135903136979 is a prime.

It is not a weakly prime, because it can be changed into another prime (135911525507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67955762793 + 67955762794.

It is an arithmetic number, because the mean of its divisors is an integer number (67955762794).

Almost surely, 2^135911525587 is an apocalyptic number.

135911525587 is a deficient number, since it is larger than the sum of its proper divisors (1).

135911525587 is an equidigital number, since it uses as much as digits as its factorization.

135911525587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890000, while the sum is 52.

The spelling of 135911525587 in words is "one hundred thirty-five billion, nine hundred eleven million, five hundred twenty-five thousand, five hundred eighty-seven".