180161297 has 2 divisors, whose sum is σ = 180161298. Its totient is φ = 180161296.

The previous prime is 180161273. The next prime is 180161309. The reversal of 180161297 is 792161081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115584001 + 64577296 = 10751^2 + 8036^2 .

It is a cyclic number.

It is not a de Polignac number, because 180161297 - 2⁸ = 180161041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (180161207) 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, 90080648 + 90080649.

It is an arithmetic number, because the mean of its divisors is an integer number (90080649).

Almost surely, 2^180161297 is an apocalyptic number.

It is an amenable number.

180161297 is a deficient number, since it is larger than the sum of its proper divisors (1).

180161297 is an equidigital number, since it uses as much as digits as its factorization.

180161297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 180161297 is about 13422.4177032307. The cubic root of 180161297 is about 564.7902184093.

The spelling of 180161297 in words is "one hundred eighty million, one hundred sixty-one thousand, two hundred ninety-seven".