130728565 has 8 divisors (see below), whose sum is σ = 171135648. Its totient is φ = 95075280.

The previous prime is 130728547. The next prime is 130728583. The reversal of 130728565 is 565827031.

It is an interprime number because it is at equal distance from previous prime (130728547) and next prime (130728583).

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

It is not a de Polignac number, because 130728565 - 2⁹ = 130728053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188387 + ... + 1188496.

It is an arithmetic number, because the mean of its divisors is an integer number (21391956).

Almost surely, 2^130728565 is an apocalyptic number.

It is an amenable number.

130728565 is a deficient number, since it is larger than the sum of its proper divisors (40407083).

130728565 is a wasteful number, since it uses less digits than its factorization.

130728565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376899.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 130728565 is about 11433.6593005039. The cubic root of 130728565 is about 507.5242888389.

The spelling of 130728565 in words is "one hundred thirty million, seven hundred twenty-eight thousand, five hundred sixty-five".