102530255 has 4 divisors (see below), whose sum is σ = 123036312. Its totient is φ = 82024200.

The previous prime is 102530243. The next prime is 102530257. The reversal of 102530255 is 552035201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552035201 = 1049 ⋅526249.

It is not a de Polignac number, because 102530255 - 2¹² = 102526159 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 102530255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102530257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10253021 + ... + 10253030.

It is an arithmetic number, because the mean of its divisors is an integer number (30759078).

Almost surely, 2^102530255 is an apocalyptic number.

102530255 is a deficient number, since it is larger than the sum of its proper divisors (20506057).

102530255 is an equidigital number, since it uses as much as digits as its factorization.

102530255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20506056.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 102530255 is about 10125.7224433618. The cubic root of 102530255 is about 468.0411227775.

Adding to 102530255 its reverse (552035201), we get a palindrome (654565456).

The spelling of 102530255 in words is "one hundred two million, five hundred thirty thousand, two hundred fifty-five".