1275020 has 24 divisors (see below), whose sum is σ = 2751504. Its totient is φ = 495936.

The previous prime is 1275019. The next prime is 1275041. The reversal of 1275020 is 205721.

It is a self number, because there is not a number n which added to its sum of digits gives 1275020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (114646).

2^1275020 is an apocalyptic number.

1275020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275020 is an abundant number, since it is smaller than the sum of its proper divisors (1476484).

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

1275020 is a wasteful number, since it uses less digits than its factorization.

1275020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1275020 is about 1129.1678351777. The cubic root of 1275020 is about 108.4357112407.

The spelling of 1275020 in words is "one million, two hundred seventy-five thousand, twenty".