130661197 has 2 divisors, whose sum is σ = 130661198. Its totient is φ = 130661196.

The previous prime is 130661149. The next prime is 130661213. The reversal of 130661197 is 791166031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83064996 + 47596201 = 9114^2 + 6899^2 .

It is a cyclic number.

It is not a de Polignac number, because 130661197 - 2¹⁵ = 130628429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130667197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65330598 + 65330599.

It is an arithmetic number, because the mean of its divisors is an integer number (65330599).

Almost surely, 2^130661197 is an apocalyptic number.

It is an amenable number.

130661197 is a deficient number, since it is larger than the sum of its proper divisors (1).

130661197 is an equidigital number, since it uses as much as digits as its factorization.

130661197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 130661197 is about 11430.7128824059. The cubic root of 130661197 is about 507.4370934833.

The spelling of 130661197 in words is "one hundred thirty million, six hundred sixty-one thousand, one hundred ninety-seven".