130578857 has 4 divisors (see below), whose sum is σ = 132719556. Its totient is φ = 128438160.

The previous prime is 130578829. The next prime is 130578881. The reversal of 130578857 is 758875031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 758875031 = 67 ⋅11326493.

It can be written as a sum of positive squares in 2 ways, for example, as 49056016 + 81522841 = 7004^2 + 9029^2 .

It is a cyclic number.

It is not a de Polignac number, because 130578857 - 2¹⁶ = 130513321 is a prime.

It is a super-4 number, since 4×130578857⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130578817) 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, 1070258 + ... + 1070379.

It is an arithmetic number, because the mean of its divisors is an integer number (33179889).

Almost surely, 2^130578857 is an apocalyptic number.

It is an amenable number.

130578857 is a deficient number, since it is larger than the sum of its proper divisors (2140699).

130578857 is an equidigital number, since it uses as much as digits as its factorization.

130578857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140698.

The product of its (nonzero) digits is 235200, while the sum is 44.

The square root of 130578857 is about 11427.1106146742. The cubic root of 130578857 is about 507.3304789435.

The spelling of 130578857 in words is "one hundred thirty million, five hundred seventy-eight thousand, eight hundred fifty-seven".