531401054132 has 24 divisors (see below), whose sum is σ = 1001573223336. Its totient is φ = 245240811648.

The previous prime is 531401054131. The next prime is 531401054179. The reversal of 531401054132 is 231450104135.

It can be written as a sum of positive squares in 4 ways, for example, as 5825352976 + 525575701156 = 76324^2 + 724966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 531401054095 and 531401054104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531401054131) 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, 173198 + ... + 1045370.

It is an arithmetic number, because the mean of its divisors is an integer number (41732217639).

Almost surely, 2^531401054132 is an apocalyptic number.

531401054132 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

531401054132 is a deficient number, since it is larger than the sum of its proper divisors (470172169204).

531401054132 is a wasteful number, since it uses less digits than its factorization.

531401054132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883907 (or 883905 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 531401054132 its reverse (231450104135), we get a palindrome (762851158267).

The spelling of 531401054132 in words is "five hundred thirty-one billion, four hundred one million, fifty-four thousand, one hundred thirty-two".