7161132217 has 2 divisors, whose sum is σ = 7161132218. Its totient is φ = 7161132216.

The previous prime is 7161132137. The next prime is 7161132269. The reversal of 7161132217 is 7122311617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7052472441 + 108659776 = 83979^2 + 10424^2 .

It is a cyclic number.

It is not a de Polignac number, because 7161132217 - 2⁷ = 7161132089 is a prime.

It is not a weakly prime, because it can be changed into another prime (7161132287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3580566108 + 3580566109.

It is an arithmetic number, because the mean of its divisors is an integer number (3580566109).

Almost surely, 2^7161132217 is an apocalyptic number.

It is an amenable number.

7161132217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7161132217 is an equidigital number, since it uses as much as digits as its factorization.

7161132217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 31.

The square root of 7161132217 is about 84623.4732033613. The cubic root of 7161132217 is about 1927.4978283326.

The spelling of 7161132217 in words is "seven billion, one hundred sixty-one million, one hundred thirty-two thousand, two hundred seventeen".