135345543531 has 48 divisors (see below), whose sum is σ = 206589406464. Its totient is φ = 78685992000.

The previous prime is 135345543511. The next prime is 135345543533.

135345543531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 135345543531 - 2¹¹ = 135345541483 is a prime.

It is a super-2 number, since 2×135345543531² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (135345543533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 882636 + ... + 1024566.

It is an arithmetic number, because the mean of its divisors is an integer number (4303945968).

Almost surely, 2^135345543531 is an apocalyptic number.

135345543531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135345543531 is a deficient number, since it is larger than the sum of its proper divisors (71243862933).

135345543531 is a wasteful number, since it uses less digits than its factorization.

135345543531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142064 (or 142053 counting only the distinct ones).

The product of its digits is 810000, while the sum is 42.

It can be divided in two parts, 135345 and 543531, that added together give a palindrome (678876).

The spelling of 135345543531 in words is "one hundred thirty-five billion, three hundred forty-five million, five hundred forty-three thousand, five hundred thirty-one".