102455897 has 2 divisors, whose sum is σ = 102455898. Its totient is φ = 102455896.

The previous prime is 102455893. The next prime is 102455909. The reversal of 102455897 is 798554201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76405081 + 26050816 = 8741^2 + 5104^2 .

It is a cyclic number.

It is not a de Polignac number, because 102455897 - 2² = 102455893 is a prime.

It is equal to p_5894816 and since 102455897 and 5894816 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (102455893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51227948 + 51227949.

It is an arithmetic number, because the mean of its divisors is an integer number (51227949).

Almost surely, 2^102455897 is an apocalyptic number.

It is an amenable number.

102455897 is a deficient number, since it is larger than the sum of its proper divisors (1).

102455897 is an equidigital number, since it uses as much as digits as its factorization.

102455897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 102455897 is about 10122.0500393942. The cubic root of 102455897 is about 467.9279496187.

The spelling of 102455897 in words is "one hundred two million, four hundred fifty-five thousand, eight hundred ninety-seven".