1275442 has 32 divisors (see below), whose sum is σ = 2426112. Its totient is φ = 489984.

The previous prime is 1275437. The next prime is 1275457. The reversal of 1275442 is 2445721.

It is an Ulam number.

It is a congruent number.

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, 5358 + ... + 5590.

It is an arithmetic number, because the mean of its divisors is an integer number (75816).

2^1275442 is an apocalyptic number.

1275442 is a deficient number, since it is larger than the sum of its proper divisors (1150670).

1275442 is a wasteful number, since it uses less digits than its factorization.

1275442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282.

The product of its digits is 2240, while the sum is 25.

The square root of 1275442 is about 1129.3546829938. The cubic root of 1275442 is about 108.4476730982.

The spelling of 1275442 in words is "one million, two hundred seventy-five thousand, four hundred forty-two".