1266250 has 20 divisors (see below), whose sum is σ = 2375802. Its totient is φ = 506000.

The previous prime is 1266247. The next prime is 1266259. The reversal of 1266250 is 526621.

It can be written as a sum of positive squares in 5 ways, for example, as 84681 + 1181569 = 291^2 + 1087^2 .

It is not an unprimeable number, because it can be changed into a prime (1266259) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 744 + ... + 1756.

2^1266250 is an apocalyptic number.

1266250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266250 is a deficient number, since it is larger than the sum of its proper divisors (1109552).

1266250 is an equidigital number, since it uses as much as digits as its factorization.

1266250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1266250 is about 1125.2777434927. The cubic root of 1266250 is about 108.1865203932.

The spelling of 1266250 in words is "one million, two hundred sixty-six thousand, two hundred fifty".