897341565149 has 2 divisors, whose sum is σ = 897341565150. Its totient is φ = 897341565148.

The previous prime is 897341565119. The next prime is 897341565191. The reversal of 897341565149 is 941565143798.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846409200025 + 50932365124 = 920005^2 + 225682^2 .

It is a cyclic number.

It is not a de Polignac number, because 897341565149 - 2³² = 893046597853 is a prime.

It is a super-2 number, since 2×897341565149² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 897341565091 and 897341565100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897341565119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448670782574 + 448670782575.

It is an arithmetic number, because the mean of its divisors is an integer number (448670782575).

Almost surely, 2^897341565149 is an apocalyptic number.

It is an amenable number.

897341565149 is a deficient number, since it is larger than the sum of its proper divisors (1).

897341565149 is an equidigital number, since it uses as much as digits as its factorization.

897341565149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 62.

The spelling of 897341565149 in words is "eight hundred ninety-seven billion, three hundred forty-one million, five hundred sixty-five thousand, one hundred forty-nine".