130205726 has 8 divisors (see below), whose sum is σ = 223209840. Its totient is φ = 55802448.

The previous prime is 130205717. The next prime is 130205729. The reversal of 130205726 is 627502031.

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

It is a junction number, because it is equal to n+sod(n) for n = 130205695 and 130205704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130205729) 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 3 ways as a sum of consecutive naturals, for example, 4650191 + ... + 4650218.

It is an arithmetic number, because the mean of its divisors is an integer number (27901230).

Almost surely, 2^130205726 is an apocalyptic number.

130205726 is a deficient number, since it is larger than the sum of its proper divisors (93004114).

130205726 is an equidigital number, since it uses as much as digits as its factorization.

130205726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300418.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 130205726 is about 11410.7723664965. The cubic root of 130205726 is about 506.8467831652.

Adding to 130205726 its reverse (627502031), we get a palindrome (757707757).

The spelling of 130205726 in words is "one hundred thirty million, two hundred five thousand, seven hundred twenty-six".