531145541135 has 16 divisors (see below), whose sum is σ = 695494425600. Its totient is φ = 386189540640.

The previous prime is 531145541119. The next prime is 531145541191.

531145541135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 531145541135 - 2⁴ = 531145541119 is a prime.

It is a super-3 number, since 3×531145541135³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007735 + ... + 1441464.

It is an arithmetic number, because the mean of its divisors is an integer number (43468401600).

Almost surely, 2^531145541135 is an apocalyptic number.

531145541135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

531145541135 is a deficient number, since it is larger than the sum of its proper divisors (164348884465).

531145541135 is a wasteful number, since it uses less digits than its factorization.

531145541135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453158.

The product of its digits is 90000, while the sum is 38.

The spelling of 531145541135 in words is "five hundred thirty-one billion, one hundred forty-five million, five hundred forty-one thousand, one hundred thirty-five".