731165125441 has 4 divisors (see below), whose sum is σ = 731176340400. Its totient is φ = 731153910484.

The previous prime is 731165125433. The next prime is 731165125511. The reversal of 731165125441 is 144521561137.

731165125441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144521561137 = 467 ⋅309468011.

It is a cyclic number.

It is not a de Polignac number, because 731165125441 - 2³ = 731165125433 is a prime.

It is a super-2 number, since 2×731165125441² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 731165125394 and 731165125403.

It is not an unprimeable number, because it can be changed into a prime (731165125841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5509111 + ... + 5640268.

It is an arithmetic number, because the mean of its divisors is an integer number (182794085100).

Almost surely, 2^731165125441 is an apocalyptic number.

It is an amenable number.

731165125441 is a deficient number, since it is larger than the sum of its proper divisors (11214959).

731165125441 is a wasteful number, since it uses less digits than its factorization.

731165125441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11214958.

The product of its digits is 100800, while the sum is 40.

Adding to 731165125441 its reverse (144521561137), we get a palindrome (875686686578).

The spelling of 731165125441 in words is "seven hundred thirty-one billion, one hundred sixty-five million, one hundred twenty-five thousand, four hundred forty-one".