102125500 has 24 divisors (see below), whose sum is σ = 223043184. Its totient is φ = 40850000.

The previous prime is 102125489. The next prime is 102125503. The reversal of 102125500 is 5521201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102125503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101626 + ... + 102625.

It is an arithmetic number, because the mean of its divisors is an integer number (9293466).

Almost surely, 2^102125500 is an apocalyptic number.

102125500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102125500 is an abundant number, since it is smaller than the sum of its proper divisors (120917684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102125500 is a wasteful number, since it uses less digits than its factorization.

102125500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204270 (or 204258 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 102125500 is about 10105.7162042084. The cubic root of 102125500 is about 467.4244208513.

Adding to 102125500 its reverse (5521201), we get a palindrome (107646701).

The spelling of 102125500 in words is "one hundred two million, one hundred twenty-five thousand, five hundred".