102125535 has 16 divisors (see below), whose sum is σ = 163847904. Its totient is φ = 54317952.

The previous prime is 102125509. The next prime is 102125539. The reversal of 102125535 is 535521201.

It is a happy number.

It is not a de Polignac number, because 102125535 - 2⁵ = 102125503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102125539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3532 + ... + 14721.

It is an arithmetic number, because the mean of its divisors is an integer number (10240494).

Almost surely, 2^102125535 is an apocalyptic number.

102125535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102125535 is a deficient number, since it is larger than the sum of its proper divisors (61722369).

102125535 is a wasteful number, since it uses less digits than its factorization.

102125535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18634.

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

The square root of 102125535 is about 10105.7179359014. The cubic root of 102125535 is about 467.4244742492.

Adding to 102125535 its reverse (535521201), we get a palindrome (637646736).

The spelling of 102125535 in words is "one hundred two million, one hundred twenty-five thousand, five hundred thirty-five".