135304403531 has 8 divisors (see below), whose sum is σ = 148824679728. Its totient is φ = 123004002000.

The previous prime is 135304403497. The next prime is 135304403561.

135304403531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 135304403531 - 2¹⁴ = 135304387147 is a prime.

It is a super-2 number, since 2×135304403531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135304403561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50826770 + ... + 50829431.

It is an arithmetic number, because the mean of its divisors is an integer number (18603084966).

Almost surely, 2^135304403531 is an apocalyptic number.

135304403531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135304403531 is a deficient number, since it is larger than the sum of its proper divisors (13520276197).

135304403531 is an equidigital number, since it uses as much as digits as its factorization.

135304403531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101656234 (or 101656212 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

It can be divided in two parts, 135304 and 403531, that added together give a palindrome (538835).

The spelling of 135304403531 in words is "one hundred thirty-five billion, three hundred four million, four hundred three thousand, five hundred thirty-one".