130768643 has 8 divisors (see below), whose sum is σ = 131559120. Its totient is φ = 129981280.

The previous prime is 130768637. The next prime is 130768663. The reversal of 130768643 is 346867031.

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

It is a cyclic number.

It is not a de Polignac number, because 130768643 - 2⁶ = 130768579 is a prime.

It is a super-2 number, since 2×130768643² = 34200875984122898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130768597 and 130768606.

It is not an unprimeable number, because it can be changed into a prime (130768613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192821 + ... + 193497.

It is an arithmetic number, because the mean of its divisors is an integer number (16444890).

Almost surely, 2^130768643 is an apocalyptic number.

130768643 is a deficient number, since it is larger than the sum of its proper divisors (790477).

130768643 is an equidigital number, since it uses as much as digits as its factorization.

130768643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 130768643 is about 11435.4117984443. The cubic root of 130768643 is about 507.5761481505.

The spelling of 130768643 in words is "one hundred thirty million, seven hundred sixty-eight thousand, six hundred forty-three".