130231205 has 8 divisors (see below), whose sum is σ = 168298872. Its totient is φ = 96170688.

The previous prime is 130231181. The next prime is 130231259. The reversal of 130231205 is 502132031.

It can be written as a sum of positive squares in 4 ways, for example, as 111556 + 130119649 = 334^2 + 11407^2 .

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 130231205 - 2⁸ = 130230949 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, 1001714 + ... + 1001843.

It is an arithmetic number, because the mean of its divisors is an integer number (21037359).

Almost surely, 2^130231205 is an apocalyptic number.

It is an amenable number.

130231205 is a deficient number, since it is larger than the sum of its proper divisors (38067667).

130231205 is a wasteful number, since it uses less digits than its factorization.

130231205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003575.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 130231205 is about 11411.8887569061. Note that the first 3 decimals coincide. The cubic root of 130231205 is about 506.8798413809.

Adding to 130231205 its reverse (502132031), we get a palindrome (632363236).

The spelling of 130231205 in words is "one hundred thirty million, two hundred thirty-one thousand, two hundred five".