897158113 has 2 divisors, whose sum is σ = 897158114. Its totient is φ = 897158112.

The previous prime is 897158111. The next prime is 897158117. The reversal of 897158113 is 311851798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598144849 + 299013264 = 24457^2 + 17292^2 .

It is a cyclic number.

It is not a de Polignac number, because 897158113 - 2¹ = 897158111 is a prime.

Together with 897158111, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 897158113.

It is not a weakly prime, because it can be changed into another prime (897158111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448579056 + 448579057.

It is an arithmetic number, because the mean of its divisors is an integer number (448579057).

Almost surely, 2^897158113 is an apocalyptic number.

It is an amenable number.

897158113 is a deficient number, since it is larger than the sum of its proper divisors (1).

897158113 is an equidigital number, since it uses as much as digits as its factorization.

897158113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 43.

The square root of 897158113 is about 29952.5977671387. The cubic root of 897158113 is about 964.4720865283.

The spelling of 897158113 in words is "eight hundred ninety-seven million, one hundred fifty-eight thousand, one hundred thirteen".