531836191441 has 3 divisors (see below), whose sum is σ = 531836920713. Its totient is φ = 531835462170.

The previous prime is 531836191427. The next prime is 531836191457. The reversal of 531836191441 is 144191638135.

The square root of 531836191441 is 729271.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 531836191441 - 2¹⁷ = 531836060369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531836191391 and 531836191400.

It is not an unprimeable number, because it can be changed into a prime (531836191141) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 364636 + ... + 1093906.

It is an arithmetic number, because the mean of its divisors is an integer number (177278973571).

Almost surely, 2^531836191441 is an apocalyptic number.

531836191441 is the 729271-st square number.

531836191441 is the 364636-th centered octagonal number.

It is an amenable number.

531836191441 is a deficient number, since it is larger than the sum of its proper divisors (729272).

531836191441 is an frugal number, since it uses more digits than its factorization.

531836191441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458542 (or 729271 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The spelling of 531836191441 in words is "five hundred thirty-one billion, eight hundred thirty-six million, one hundred ninety-one thousand, four hundred forty-one".