1250000 divided by its product of nonzero digits (10) gives a cube (125000 = 503).
Adding to 1250000 its reverse (521), we get a palindrome (1250521).
It is a tau number, because it is divible by the number of its divisors (40).
It is a plaindrome in base 14.
It is a nialpdrome in base 5.
It is a self number, because there is not a number n which added to its sum of digits gives 1250000.
It is a congruent number.
21250000 is an apocalyptic number.
1250000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1513668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1250000 is an frugal number, since it uses more digits than its factorization.
1250000 is an evil number, because the sum of its binary digits is even.
The square root of 1250000 is about 1118.0339887499. The cubic root of 1250000 is about 107.7217345016.
The spelling of 1250000 in words is "one million, two hundred fifty thousand".