130705893 has 10 divisors (see below), whose sum is σ = 195252134. Its totient is φ = 87137208.

The previous prime is 130705879. The next prime is 130705901. The reversal of 130705893 is 398507031.

130705893 is a `hidden beast` number, since 1 + 3 + 0 + 70 + 589 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91355364 + 39350529 = 9558^2 + 6273^2 .

It is not a de Polignac number, because 130705893 - 2⁶ = 130705829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130705823) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 806746 + ... + 806907.

Almost surely, 2^130705893 is an apocalyptic number.

It is an amenable number.

130705893 is a deficient number, since it is larger than the sum of its proper divisors (64546241).

130705893 is an equidigital number, since it uses as much as digits as its factorization.

130705893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613665 (or 1613656 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 130705893 is about 11432.6677988998. The cubic root of 130705893 is about 507.4949474935.

The spelling of 130705893 in words is "one hundred thirty million, seven hundred five thousand, eight hundred ninety-three".