130185895949 has 4 divisors (see below), whose sum is σ = 130254380700. Its totient is φ = 130117411200.

The previous prime is 130185895919. The next prime is 130185895963. The reversal of 130185895949 is 949598581031.

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 31859751049 + 98326144900 = 178493^2 + 313570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130185895949 is a prime.

It is a super-2 number, since 2×130185895949² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130185895891 and 130185895900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130185895919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34239524 + ... + 34243325.

It is an arithmetic number, because the mean of its divisors is an integer number (32563595175).

Almost surely, 2^130185895949 is an apocalyptic number.

It is an amenable number.

130185895949 is a deficient number, since it is larger than the sum of its proper divisors (68484751).

130185895949 is an equidigital number, since it uses as much as digits as its factorization.

130185895949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68484750.

The product of its (nonzero) digits is 13996800, while the sum is 62.

The spelling of 130185895949 in words is "one hundred thirty billion, one hundred eighty-five million, eight hundred ninety-five thousand, nine hundred forty-nine".