1275489 has 12 divisors (see below), whose sum is σ = 1939600. Its totient is φ = 805464.

The previous prime is 1275467. The next prime is 1275499. The reversal of 1275489 is 9845721.

It is not a de Polignac number, because 1275489 - 2⁵ = 1275457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275499) 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 11 ways as a sum of consecutive naturals, for example, 3559 + ... + 3900.

2^1275489 is an apocalyptic number.

1275489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1275489 is a deficient number, since it is larger than the sum of its proper divisors (664111).

1275489 is a wasteful number, since it uses less digits than its factorization.

1275489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7484 (or 7481 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1275489 is about 1129.3754911454. The cubic root of 1275489 is about 108.4490051797.

It can be divided in two parts, 1275 and 489, that added together give a square (1764 = 42²).

The spelling of 1275489 in words is "one million, two hundred seventy-five thousand, four hundred eighty-nine".