102530789 has 2 divisors, whose sum is σ = 102530790. Its totient is φ = 102530788.

The previous prime is 102530777. The next prime is 102530801. The reversal of 102530789 is 987035201.

It is a balanced prime because it is at equal distance from previous prime (102530777) and next prime (102530801).

It can be written as a sum of positive squares in only one way, i.e., 95550625 + 6980164 = 9775^2 + 2642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102530789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102530089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265394 + 51265395.

It is an arithmetic number, because the mean of its divisors is an integer number (51265395).

Almost surely, 2^102530789 is an apocalyptic number.

It is an amenable number.

102530789 is a deficient number, since it is larger than the sum of its proper divisors (1).

102530789 is an equidigital number, since it uses as much as digits as its factorization.

102530789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 102530789 is about 10125.7488118163. The cubic root of 102530789 is about 468.0419353296.

The spelling of 102530789 in words is "one hundred two million, five hundred thirty thousand, seven hundred eighty-nine".