130105849 has 2 divisors, whose sum is σ = 130105850. Its totient is φ = 130105848.

The previous prime is 130105847. The next prime is 130105889. The reversal of 130105849 is 948501031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105781225 + 24324624 = 10285^2 + 4932^2 .

It is a cyclic number.

It is not a de Polignac number, because 130105849 - 2¹ = 130105847 is a prime.

Together with 130105847, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 130105849.

It is not a weakly prime, because it can be changed into another prime (130105841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65052924 + 65052925.

It is an arithmetic number, because the mean of its divisors is an integer number (65052925).

Almost surely, 2^130105849 is an apocalyptic number.

It is an amenable number.

130105849 is a deficient number, since it is larger than the sum of its proper divisors (1).

130105849 is an equidigital number, since it uses as much as digits as its factorization.

130105849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 130105849 is about 11406.3950922279. The cubic root of 130105849 is about 506.7171542391.

The spelling of 130105849 in words is "one hundred thirty million, one hundred five thousand, eight hundred forty-nine".