102102241 has 2 divisors, whose sum is σ = 102102242. Its totient is φ = 102102240.

The previous prime is 102102239. The next prime is 102102269. The reversal of 102102241 is 142201201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97436641 + 4665600 = 9871^2 + 2160^2 .

It is a cyclic number.

It is not a de Polignac number, because 102102241 - 2¹ = 102102239 is a prime.

Together with 102102239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (102102041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051120 + 51051121.

It is an arithmetic number, because the mean of its divisors is an integer number (51051121).

Almost surely, 2^102102241 is an apocalyptic number.

It is an amenable number.

102102241 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102241 is an equidigital number, since it uses as much as digits as its factorization.

102102241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 102102241 is about 10104.5653543337. The cubic root of 102102241 is about 467.3889329792.

Adding to 102102241 its reverse (142201201), we get a palindrome (244303442).

The spelling of 102102241 in words is "one hundred two million, one hundred two thousand, two hundred forty-one".