130783872 has 32 divisors (see below), whose sum is σ = 347395680. Its totient is φ = 43594496.

The previous prime is 130783867. The next prime is 130783889. The reversal of 130783872 is 278387031.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 130783872.

It is a congruent number.

It is an unprimeable number.

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, 169908 + ... + 170675.

It is an arithmetic number, because the mean of its divisors is an integer number (10856115).

Almost surely, 2^130783872 is an apocalyptic number.

130783872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130783872 is an abundant number, since it is smaller than the sum of its proper divisors (216611808).

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

130783872 is an equidigital number, since it uses as much as digits as its factorization.

130783872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340600 (or 340588 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 130783872 is about 11436.0776492642. The cubic root of 130783872 is about 507.5958510827.

The spelling of 130783872 in words is "one hundred thirty million, seven hundred eighty-three thousand, eight hundred seventy-two".