531432100445 has 8 divisors (see below), whose sum is σ = 637747669944. Its totient is φ = 425126247424.

The previous prime is 531432100429. The next prime is 531432100471. The reversal of 531432100445 is 544001234135.

It can be written as a sum of positive squares in 4 ways, for example, as 89139267844 + 442292832601 = 298562^2 + 665051^2 .

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 531432100445 - 2⁴ = 531432100429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308244 + ... + 2528013.

It is an arithmetic number, because the mean of its divisors is an integer number (79718458743).

Almost surely, 2^531432100445 is an apocalyptic number.

It is an amenable number.

531432100445 is a deficient number, since it is larger than the sum of its proper divisors (106315569499).

531432100445 is a wasteful number, since it uses less digits than its factorization.

531432100445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858239.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 531432100445 in words is "five hundred thirty-one billion, four hundred thirty-two million, one hundred thousand, four hundred forty-five".