102135525 has 24 divisors (see below), whose sum is σ = 176208960. Its totient is φ = 52103040.

The previous prime is 102135511. The next prime is 102135547. The reversal of 102135525 is 525531201.

It is a happy number.

It is not a de Polignac number, because 102135525 - 2⁶ = 102135461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102135495 and 102135504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27880 + ... + 31329.

It is an arithmetic number, because the mean of its divisors is an integer number (7342040).

Almost surely, 2^102135525 is an apocalyptic number.

102135525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102135525 is a deficient number, since it is larger than the sum of its proper divisors (74073435).

102135525 is a wasteful number, since it uses less digits than its factorization.

102135525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59245 (or 59240 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 102135525 is about 10106.2121984451. The cubic root of 102135525 is about 467.4397150286.

Adding to 102135525 its reverse (525531201), we get a palindrome (627666726).

The spelling of 102135525 in words is "one hundred two million, one hundred thirty-five thousand, five hundred twenty-five".