1275270 has 16 divisors (see below), whose sum is σ = 3060720. Its totient is φ = 340064.

The previous prime is 1275269. The next prime is 1275277. The reversal of 1275270 is 725721.

It is a self number, because there is not a number n which added to its sum of digits gives 1275270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21225 + ... + 21284.

It is an arithmetic number, because the mean of its divisors is an integer number (191295).

2^1275270 is an apocalyptic number.

1275270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1275270 is an abundant number, since it is smaller than the sum of its proper divisors (1785450).

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

1275270 is a wasteful number, since it uses less digits than its factorization.

1275270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42519.

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

The square root of 1275270 is about 1129.2785307443. The cubic root of 1275270 is about 108.4427979678.

The spelling of 1275270 in words is "one million, two hundred seventy-five thousand, two hundred seventy".