7161530897 has 2 divisors, whose sum is σ = 7161530898. Its totient is φ = 7161530896.

The previous prime is 7161530881. The next prime is 7161530917. The reversal of 7161530897 is 7980351617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4079504641 + 3082026256 = 63871^2 + 55516^2 .

It is a cyclic number.

It is not a de Polignac number, because 7161530897 - 2⁴ = 7161530881 is a prime.

It is not a weakly prime, because it can be changed into another prime (7161530807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3580765448 + 3580765449.

It is an arithmetic number, because the mean of its divisors is an integer number (3580765449).

Almost surely, 2^7161530897 is an apocalyptic number.

It is an amenable number.

7161530897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7161530897 is an equidigital number, since it uses as much as digits as its factorization.

7161530897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 7161530897 is about 84625.8287817614. The cubic root of 7161530897 is about 1927.5335973773.

The spelling of 7161530897 in words is "seven billion, one hundred sixty-one million, five hundred thirty thousand, eight hundred ninety-seven".