531043340135 has 72 divisors (see below), whose sum is σ = 829076303328. Its totient is φ = 319622688000.

The previous prime is 531043340131. The next prime is 531043340143.

531043340135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 531043340135 - 2² = 531043340131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531043340131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3487085 + ... + 3636185.

Almost surely, 2^531043340135 is an apocalyptic number.

531043340135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

531043340135 is a deficient number, since it is larger than the sum of its proper divisors (298032963193).

531043340135 is a wasteful number, since it uses less digits than its factorization.

531043340135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149193 (or 149153 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, 531043 and 340135, that added together give a palindrome (871178).

The spelling of 531043340135 in words is "five hundred thirty-one billion, forty-three million, three hundred forty thousand, one hundred thirty-five".