1216250 has 40 divisors (see below), whose sum is σ = 2624160. Its totient is φ = 414000.

The previous prime is 1216249. The next prime is 1216273. The reversal of 1216250 is 526121.

It is a Curzon number.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8681 + ... + 8819.

It is an arithmetic number, because the mean of its divisors is an integer number (65604).

2^1216250 is an apocalyptic number.

1216250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1216250 is an abundant number, since it is smaller than the sum of its proper divisors (1407910).

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

1216250 is an equidigital number, since it uses as much as digits as its factorization.

1216250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1216250 is about 1102.8372500056. The cubic root of 1216250 is about 106.7433801452.

It can be divided in two parts, 12 and 16250, that multiplied together give a triangular number (195000 = T₆₂₄).

The spelling of 1216250 in words is "one million, two hundred sixteen thousand, two hundred fifty".