135697487527 has 4 divisors (see below), whose sum is σ = 155082842896. Its totient is φ = 116312132160.

The previous prime is 135697487521. The next prime is 135697487537. The reversal of 135697487527 is 725784796531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 725784796531 = 143677 ⋅5051503.

It is not a de Polignac number, because 135697487527 - 2³¹ = 133550003879 is a prime.

It is a super-2 number, since 2×135697487527² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135697487521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9692677674 + ... + 9692677687.

It is an arithmetic number, because the mean of its divisors is an integer number (38770710724).

Almost surely, 2^135697487527 is an apocalyptic number.

135697487527 is a deficient number, since it is larger than the sum of its proper divisors (19385355369).

135697487527 is an equidigital number, since it uses as much as digits as its factorization.

135697487527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19385355368.

The product of its digits is 88905600, while the sum is 64.

The spelling of 135697487527 in words is "one hundred thirty-five billion, six hundred ninety-seven million, four hundred eighty-seven thousand, five hundred twenty-seven".