102131250 has 96 divisors (see below), whose sum is σ = 275607360. Its totient is φ = 25080000.

The previous prime is 102131233. The next prime is 102131269. The reversal of 102131250 is 52131201.

It is a super-3 number, since 3×102131250³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243541 + ... + 243959.

It is an arithmetic number, because the mean of its divisors is an integer number (2870910).

Almost surely, 2^102131250 is an apocalyptic number.

102131250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102131250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137803680).

102131250 is an abundant number, since it is smaller than the sum of its proper divisors (173476110).

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

102131250 is an equidigital number, since it uses as much as digits as its factorization.

102131250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 102131250 is about 10106.0006926578. Note that the first 3 decimals coincide. The cubic root of 102131250 is about 467.4331931951.

Adding to 102131250 its reverse (52131201), we get a palindrome (154262451).

The spelling of 102131250 in words is "one hundred two million, one hundred thirty-one thousand, two hundred fifty".