971130161 has 2 divisors, whose sum is σ = 971130162. Its totient is φ = 971130160.

The previous prime is 971130131. The next prime is 971130191. The reversal of 971130161 is 161031179.

It is a balanced prime because it is at equal distance from previous prime (971130131) and next prime (971130191).

It can be written as a sum of positive squares in only one way, i.e., 908419600 + 62710561 = 30140^2 + 7919^2 .

It is an emirp because it is prime and its reverse (161031179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 971130161 - 2²² = 966935857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (971130101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485565080 + 485565081.

It is an arithmetic number, because the mean of its divisors is an integer number (485565081).

Almost surely, 2^971130161 is an apocalyptic number.

971130161 is the 13937-th centered decagonal number.

It is an amenable number.

971130161 is a deficient number, since it is larger than the sum of its proper divisors (1).

971130161 is an equidigital number, since it uses as much as digits as its factorization.

971130161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 971130161 is about 31162.9613644146. The cubic root of 971130161 is about 990.2825983022.

The spelling of 971130161 in words is "nine hundred seventy-one million, one hundred thirty thousand, one hundred sixty-one".