130728286 has 8 divisors (see below), whose sum is σ = 211176504. Its totient is φ = 60336120.

The previous prime is 130728233. The next prime is 130728287. The reversal of 130728286 is 682827031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130728287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2513980 + ... + 2514031.

It is an arithmetic number, because the mean of its divisors is an integer number (26397063).

Almost surely, 2^130728286 is an apocalyptic number.

130728286 is a deficient number, since it is larger than the sum of its proper divisors (80448218).

130728286 is a wasteful number, since it uses less digits than its factorization.

130728286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028026.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 130728286 is about 11433.6470996791. The cubic root of 130728286 is about 507.5239277870.

The spelling of 130728286 in words is "one hundred thirty million, seven hundred twenty-eight thousand, two hundred eighty-six".