130726812 has 12 divisors (see below), whose sum is σ = 305029256. Its totient is φ = 43575600.

The previous prime is 130726811. The next prime is 130726829. The reversal of 130726812 is 218627031.

130726812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 130726812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130726811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5446939 + ... + 5446962.

Almost surely, 2^130726812 is an apocalyptic number.

130726812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130726812 is an abundant number, since it is smaller than the sum of its proper divisors (174302444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130726812 is a wasteful number, since it uses less digits than its factorization.

130726812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10893908 (or 10893906 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 130726812 is about 11433.5826406249. The cubic root of 130726812 is about 507.5220202858.

The spelling of 130726812 in words is "one hundred thirty million, seven hundred twenty-six thousand, eight hundred twelve".