1097027161 has 2 divisors, whose sum is σ = 1097027162. Its totient is φ = 1097027160.

The previous prime is 1097027131. The next prime is 1097027189. The reversal of 1097027161 is 1617207901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 702250000 + 394777161 = 26500^2 + 19869^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097027161 - 2⁷ = 1097027033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097027131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548513580 + 548513581.

It is an arithmetic number, because the mean of its divisors is an integer number (548513581).

Almost surely, 2^1097027161 is an apocalyptic number.

It is an amenable number.

1097027161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097027161 is an equidigital number, since it uses as much as digits as its factorization.

1097027161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 1097027161 is about 33121.4003478114. The cubic root of 1097027161 is about 1031.3493362725.

The spelling of 1097027161 in words is "one billion, ninety-seven million, twenty-seven thousand, one hundred sixty-one".