5431231205 has 8 divisors (see below), whose sum is σ = 6520123512. Its totient is φ = 4343220928.

The previous prime is 5431231199. The next prime is 5431231219. The reversal of 5431231205 is 5021321345.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2199422404 + 3231808801 = 46898^2 + 56849^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5431231205 is a prime.

It is a Duffinian number.

It is a Curzon 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, 206882 + ... + 231651.

It is an arithmetic number, because the mean of its divisors is an integer number (815015439).

Almost surely, 2^5431231205 is an apocalyptic number.

It is an amenable number.

5431231205 is a deficient number, since it is larger than the sum of its proper divisors (1088892307).

5431231205 is a wasteful number, since it uses less digits than its factorization.

5431231205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441015.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 5431231205 is about 73696.8873494668. The cubic root of 5431231205 is about 1757.7863876794.

The spelling of 5431231205 in words is "five billion, four hundred thirty-one million, two hundred thirty-one thousand, two hundred five".