1275090 has 32 divisors (see below), whose sum is σ = 3222720. Its totient is φ = 321984.

The previous prime is 1275067. The next prime is 1275107. The reversal of 1275090 is 905721.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1275090.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 549 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (100710).

2^1275090 is an apocalyptic number.

1275090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1275090 is an abundant number, since it is smaller than the sum of its proper divisors (1947630).

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

1275090 is a wasteful number, since it uses less digits than its factorization.

1275090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 1275090 is about 1129.1988310302. The cubic root of 1275090 is about 108.4376956176.

The spelling of 1275090 in words is "one million, two hundred seventy-five thousand, ninety".