102504641 has 2 divisors, whose sum is σ = 102504642. Its totient is φ = 102504640.

The previous prime is 102504599. The next prime is 102504691. The reversal of 102504641 is 146405201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75620416 + 26884225 = 8696^2 + 5185^2 .

It is an emirp because it is prime and its reverse (146405201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102504641 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (102504691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51252320 + 51252321.

It is an arithmetic number, because the mean of its divisors is an integer number (51252321).

Almost surely, 2^102504641 is an apocalyptic number.

It is an amenable number.

102504641 is a deficient number, since it is larger than the sum of its proper divisors (1).

102504641 is an equidigital number, since it uses as much as digits as its factorization.

102504641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 102504641 is about 10124.4575657168. The cubic root of 102504641 is about 468.0021443518.

Adding to 102504641 its reverse (146405201), we get a palindrome (248909842).

The spelling of 102504641 in words is "one hundred two million, five hundred four thousand, six hundred forty-one".