1272750 has 32 divisors (see below), whose sum is σ = 3178656. Its totient is φ = 339200.

The previous prime is 1272749. The next prime is 1272811. The reversal of 1272750 is 572721.

It is a self number, because there is not a number n which added to its sum of digits gives 1272750.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (99333).

2^1272750 is an apocalyptic number.

1272750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589328).

1272750 is an abundant number, since it is smaller than the sum of its proper divisors (1905906).

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

1272750 is a wasteful number, since it uses less digits than its factorization.

1272750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 1272750 is about 1128.1622223776. The cubic root of 1272750 is about 108.3713213259.

The spelling of 1272750 in words is "one million, two hundred seventy-two thousand, seven hundred fifty".