102242417 has 2 divisors, whose sum is σ = 102242418. Its totient is φ = 102242416.

The previous prime is 102242411. The next prime is 102242431. The reversal of 102242417 is 714242201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65869456 + 36372961 = 8116^2 + 6031^2 .

It is a cyclic number.

It is not a de Polignac number, because 102242417 - 2¹⁰ = 102241393 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102242392 and 102242401.

It is not a weakly prime, because it can be changed into another prime (102242411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51121208 + 51121209.

It is an arithmetic number, because the mean of its divisors is an integer number (51121209).

Almost surely, 2^102242417 is an apocalyptic number.

It is an amenable number.

102242417 is a deficient number, since it is larger than the sum of its proper divisors (1).

102242417 is an equidigital number, since it uses as much as digits as its factorization.

102242417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 102242417 is about 10111.4992459081. The cubic root of 102242417 is about 467.6027276706.

Adding to 102242417 its reverse (714242201), we get a palindrome (816484618).

The spelling of 102242417 in words is "one hundred two million, two hundred forty-two thousand, four hundred seventeen".