102250 has 16 divisors (see below), whose sum is σ = 191880. Its totient is φ = 40800.

The previous prime is 102241. The next prime is 102251. The reversal of 102250 is 52201.

It can be written as a sum of positive squares in 4 ways, for example, as 54289 + 47961 = 233^2 + 219^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (102251) 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, 46 + ... + 454.

2¹⁰²²⁵⁰ is an apocalyptic number.

102250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102250 is a deficient number, since it is larger than the sum of its proper divisors (89630).

102250 is an equidigital number, since it uses as much as digits as its factorization.

102250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 102250 is about 319.7655391064. The cubic root of 102250 is about 46.7614287595.

Adding to 102250 its reverse (52201), we get a palindrome (154451).

It can be divided in two parts, 10 and 2250, that multiplied together give a square (22500 = 150²).

The spelling of 102250 in words is "one hundred two thousand, two hundred fifty".