135435342531 has 16 divisors (see below), whose sum is σ = 185639667200. Its totient is φ = 87765324768.

The previous prime is 135435342521. The next prime is 135435342593. The reversal of 135435342531 is 135243534531.

It is not a de Polignac number, because 135435342531 - 2¹³ = 135435334339 is a prime.

It is a super-2 number, since 2×135435342531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135435342531.

It is not an unprimeable number, because it can be changed into a prime (135435342521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471841 + ... + 702498.

It is an arithmetic number, because the mean of its divisors is an integer number (11602479200).

Almost surely, 2^135435342531 is an apocalyptic number.

135435342531 is a deficient number, since it is larger than the sum of its proper divisors (50204324669).

135435342531 is a wasteful number, since it uses less digits than its factorization.

135435342531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175418.

The product of its digits is 324000, while the sum is 39.

The spelling of 135435342531 in words is "one hundred thirty-five billion, four hundred thirty-five million, three hundred forty-two thousand, five hundred thirty-one".