130189849 has 2 divisors, whose sum is σ = 130189850. Its totient is φ = 130189848.

The previous prime is 130189847. The next prime is 130189907. The reversal of 130189849 is 948981031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126967824 + 3222025 = 11268^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 130189849 - 2¹ = 130189847 is a prime.

Together with 130189847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (130189841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65094924 + 65094925.

It is an arithmetic number, because the mean of its divisors is an integer number (65094925).

Almost surely, 2^130189849 is an apocalyptic number.

It is an amenable number.

130189849 is a deficient number, since it is larger than the sum of its proper divisors (1).

130189849 is an equidigital number, since it uses as much as digits as its factorization.

130189849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 130189849 is about 11410.0766430379. The cubic root of 130189849 is about 506.8261810670.

The spelling of 130189849 in words is "one hundred thirty million, one hundred eighty-nine thousand, eight hundred forty-nine".