531104421 has 8 divisors (see below), whose sum is σ = 708362784. Its totient is φ = 353957840.

The previous prime is 531104411. The next prime is 531104437. The reversal of 531104421 is 124401135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531104421 - 2¹⁷ = 530973349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531104411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16146 + ... + 36371.

It is an arithmetic number, because the mean of its divisors is an integer number (88545348).

Almost surely, 2^531104421 is an apocalyptic number.

It is an amenable number.

531104421 is a deficient number, since it is larger than the sum of its proper divisors (177258363).

531104421 is a wasteful number, since it uses less digits than its factorization.

531104421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55891.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 531104421 is about 23045.7028749396. The cubic root of 531104421 is about 809.8289640398.

Adding to 531104421 its reverse (124401135), we get a palindrome (655505556).

The spelling of 531104421 in words is "five hundred thirty-one million, one hundred four thousand, four hundred twenty-one".