2105250 has 64 divisors (see below), whose sum is σ = 6020352. Its totient is φ = 480000.

The previous prime is 2105231. The next prime is 2105251. The reversal of 2105250 is 525012.

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

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2105251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5050 + ... + 5450.

It is an arithmetic number, because the mean of its divisors is an integer number (94068).

2^2105250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3010176).

2105250 is an abundant number, since it is smaller than the sum of its proper divisors (3915102).

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

2105250 is a wasteful number, since it uses less digits than its factorization.

2105250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 2105250 is about 1450.9479659864. The cubic root of 2105250 is about 128.1645426234.

It can be divided in two parts, 210 and 5250, that multiplied together give a square (1102500 = 1050²).

The spelling of 2105250 in words is "two million, one hundred five thousand, two hundred fifty".