213250 has 16 divisors (see below), whose sum is σ = 399672. Its totient is φ = 85200.

The previous prime is 213247. The next prime is 213253. The reversal of 213250 is 52312.

It is an interprime number because it is at equal distance from previous prime (213247) and next prime (213253).

It can be written as a sum of positive squares in 4 ways, for example, as 18769 + 194481 = 137^2 + 441^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 213250.

It is not an unprimeable number, because it can be changed into a prime (213253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177 + ... + 676.

2²¹³²⁵⁰ is an apocalyptic number.

213250 is a deficient number, since it is larger than the sum of its proper divisors (186422).

213250 is an equidigital number, since it uses as much as digits as its factorization.

213250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 213250 is about 461.7899955608. The cubic root of 213250 is about 59.7442820576.

Adding to 213250 its reverse (52312), we get a palindrome (265562).

The spelling of 213250 in words is "two hundred thirteen thousand, two hundred fifty".