102122393 has 2 divisors, whose sum is σ = 102122394. Its totient is φ = 102122392.

The previous prime is 102122387. The next prime is 102122407. The reversal of 102122393 is 393221201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96983104 + 5139289 = 9848^2 + 2267^2 .

It is a cyclic number.

It is not a de Polignac number, because 102122393 - 2²⁴ = 85345177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (102122303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51061196 + 51061197.

It is an arithmetic number, because the mean of its divisors is an integer number (51061197).

Almost surely, 2^102122393 is an apocalyptic number.

It is an amenable number.

102122393 is a deficient number, since it is larger than the sum of its proper divisors (1).

102122393 is an equidigital number, since it uses as much as digits as its factorization.

102122393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 102122393 is about 10105.5624781602. The cubic root of 102122393 is about 467.4196805974.

Adding to 102122393 its reverse (393221201), we get a palindrome (495343594).

The spelling of 102122393 in words is "one hundred two million, one hundred twenty-two thousand, three hundred ninety-three".