130809546 has 64 divisors (see below), whose sum is σ = 343699200. Its totient is φ = 36082368.

The previous prime is 130809529. The next prime is 130809551. The reversal of 130809546 is 645908031.

130809546 is a `hidden beast` number, since 1 + 30 + 80 + 9 + 546 = 666.

It is a super-2 number, since 2×130809546² = 34222274649452232, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 130809546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4996 + ... + 16928.

It is an arithmetic number, because the mean of its divisors is an integer number (5370300).

Almost surely, 2^130809546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130809546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171849600).

130809546 is an abundant number, since it is smaller than the sum of its proper divisors (212889654).

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

130809546 is a wasteful number, since it uses less digits than its factorization.

130809546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11980 (or 11974 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 130809546 is about 11437.2000944287. The cubic root of 130809546 is about 507.6290640546.

The spelling of 130809546 in words is "one hundred thirty million, eight hundred nine thousand, five hundred forty-six".