105214250 has 16 divisors (see below), whose sum is σ = 196961544. Its totient is φ = 42085600.

The previous prime is 105214223. The next prime is 105214289. The reversal of 105214250 is 52412501.

It can be written as a sum of positive squares in 4 ways, for example, as 6589489 + 98624761 = 2567^2 + 9931^2 .

It is a super-2 number, since 2×105214250² = 22140076806125000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210179 + ... + 210678.

Almost surely, 2^105214250 is an apocalyptic number.

105214250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105214250 is a deficient number, since it is larger than the sum of its proper divisors (91747294).

105214250 is an equidigital number, since it uses as much as digits as its factorization.

105214250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420874 (or 420864 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 105214250 is about 10257.3997679724. The cubic root of 105214250 is about 472.0900581054.

Adding to 105214250 its reverse (52412501), we get a palindrome (157626751).

The spelling of 105214250 in words is "one hundred five million, two hundred fourteen thousand, two hundred fifty".