102818897 has 2 divisors, whose sum is σ = 102818898. Its totient is φ = 102818896.

The previous prime is 102818879. The next prime is 102818959. The reversal of 102818897 is 798818201.

Together with previous prime (102818879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77457601 + 25361296 = 8801^2 + 5036^2 .

It is a cyclic number.

It is not a de Polignac number, because 102818897 - 2⁸ = 102818641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102818197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51409448 + 51409449.

It is an arithmetic number, because the mean of its divisors is an integer number (51409449).

Almost surely, 2^102818897 is an apocalyptic number.

It is an amenable number.

102818897 is a deficient number, since it is larger than the sum of its proper divisors (1).

102818897 is an equidigital number, since it uses as much as digits as its factorization.

102818897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 44.

The square root of 102818897 is about 10139.9653352465. The cubic root of 102818897 is about 468.4799192732.

The spelling of 102818897 in words is "one hundred two million, eight hundred eighteen thousand, eight hundred ninety-seven".