130728375 has 48 divisors (see below), whose sum is σ = 243846720. Its totient is φ = 67300800.

The previous prime is 130728373. The next prime is 130728391. The reversal of 130728375 is 573827031.

130728375 is a `hidden beast` number, since 1 + 307 + 283 + 75 = 666.

It is not a de Polignac number, because 130728375 - 2¹ = 130728373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130728371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30622 + ... + 34628.

It is an arithmetic number, because the mean of its divisors is an integer number (5080140).

Almost surely, 2^130728375 is an apocalyptic number.

130728375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130728375 is a deficient number, since it is larger than the sum of its proper divisors (113118345).

130728375 is a wasteful number, since it uses less digits than its factorization.

130728375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057 (or 4044 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 130728375 is about 11433.6509916999. The cubic root of 130728375 is about 507.5240429613.

The spelling of 130728375 in words is "one hundred thirty million, seven hundred twenty-eight thousand, three hundred seventy-five".