102388049 has 2 divisors, whose sum is σ = 102388050. Its totient is φ = 102388048.

The previous prime is 102387977. The next prime is 102388051. The reversal of 102388049 is 940883201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53290000 + 49098049 = 7300^2 + 7007^2 .

It is a cyclic number.

It is not a de Polignac number, because 102388049 - 2⁸ = 102387793 is a prime.

Together with 102388051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102388079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51194024 + 51194025.

It is an arithmetic number, because the mean of its divisors is an integer number (51194025).

Almost surely, 2^102388049 is an apocalyptic number.

It is an amenable number.

102388049 is a deficient number, since it is larger than the sum of its proper divisors (1).

102388049 is an equidigital number, since it uses as much as digits as its factorization.

102388049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 102388049 is about 10118.6979893660. The cubic root of 102388049 is about 467.8246369185.

The spelling of 102388049 in words is "one hundred two million, three hundred eighty-eight thousand, forty-nine".