130593000781 has 4 divisors (see below), whose sum is σ = 133778195964. Its totient is φ = 127407805600.

The previous prime is 130593000763. The next prime is 130593000793. The reversal of 130593000781 is 187000395031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42111144100 + 88481856681 = 205210^2 + 297459^2 .

It is a cyclic number.

It is not a de Polignac number, because 130593000781 - 2⁷ = 130593000653 is a prime.

It is a super-2 number, since 2×130593000781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130593000781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130593003781) 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, 1592597530 + ... + 1592597611.

It is an arithmetic number, because the mean of its divisors is an integer number (33444548991).

Almost surely, 2^130593000781 is an apocalyptic number.

130593000781 is the 161613-rd centered decagonal number.

It is an amenable number.

130593000781 is a deficient number, since it is larger than the sum of its proper divisors (3185195183).

130593000781 is an equidigital number, since it uses as much as digits as its factorization.

130593000781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185195182.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 130593000781 in words is "one hundred thirty billion, five hundred ninety-three million, seven hundred eighty-one", and thus it is an aban number.