102530243 has 2 divisors, whose sum is σ = 102530244. Its totient is φ = 102530242.

The previous prime is 102530201. The next prime is 102530257. The reversal of 102530243 is 342035201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102530243 - 2¹⁶ = 102464707 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (102530273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265121 + 51265122.

It is an arithmetic number, because the mean of its divisors is an integer number (51265122).

Almost surely, 2^102530243 is an apocalyptic number.

102530243 is a deficient number, since it is larger than the sum of its proper divisors (1).

102530243 is an equidigital number, since it uses as much as digits as its factorization.

102530243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 102530243 is about 10125.7218508114. The cubic root of 102530243 is about 468.0411045179.

Adding to 102530243 its reverse (342035201), we get a palindrome (444565444).

The spelling of 102530243 in words is "one hundred two million, five hundred thirty thousand, two hundred forty-three".