1275436 has 12 divisors (see below), whose sum is σ = 2240280. Its totient is φ = 635360.

The previous prime is 1275401. The next prime is 1275437. The reversal of 1275436 is 6345721.

It is not an unprimeable number, because it can be changed into a prime (1275437) 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 3 ways as a sum of consecutive naturals, for example, 1296 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (186690).

2^1275436 is an apocalyptic number.

It is an amenable number.

1275436 is a deficient number, since it is larger than the sum of its proper divisors (964844).

1275436 is a wasteful number, since it uses less digits than its factorization.

1275436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1182 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 1275436 is about 1129.3520266064. The cubic root of 1275436 is about 108.4475030429.

It can be divided in two parts, 1275 and 436, that added together give a triangular number (1711 = T₅₈).

The spelling of 1275436 in words is "one million, two hundred seventy-five thousand, four hundred thirty-six".