130162561 has 2 divisors, whose sum is σ = 130162562. Its totient is φ = 130162560.

The previous prime is 130162547. The next prime is 130162573. The reversal of 130162561 is 165261031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128686336 + 1476225 = 11344^2 + 1215^2 .

It is a cyclic number.

It is not a de Polignac number, because 130162561 - 2¹³ = 130154369 is a prime.

It is not a weakly prime, because it can be changed into another prime (130162061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65081280 + 65081281.

It is an arithmetic number, because the mean of its divisors is an integer number (65081281).

Almost surely, 2^130162561 is an apocalyptic number.

It is an amenable number.

130162561 is a deficient number, since it is larger than the sum of its proper divisors (1).

130162561 is an equidigital number, since it uses as much as digits as its factorization.

130162561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 130162561 is about 11408.8807952402. The cubic root of 130162561 is about 506.7907680673.

The spelling of 130162561 in words is "one hundred thirty million, one hundred sixty-two thousand, five hundred sixty-one".