1270489 has 4 divisors (see below), whose sum is σ = 1386000. Its totient is φ = 1154980.

The previous prime is 1270483. The next prime is 1270499. The reversal of 1270489 is 9840721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9840721 = 11 ⋅894611.

It is a cyclic number.

It is not a de Polignac number, because 1270489 - 2⁷ = 1270361 is a prime.

It is a super-2 number, since 2×1270489² = 3228284598242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1270489.

It is not an unprimeable number, because it can be changed into a prime (1270483) 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, 57739 + ... + 57760.

It is an arithmetic number, because the mean of its divisors is an integer number (346500).

2^1270489 is an apocalyptic number.

It is an amenable number.

1270489 is a deficient number, since it is larger than the sum of its proper divisors (115511).

1270489 is a wasteful number, since it uses less digits than its factorization.

1270489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115510.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1270489 is about 1127.1597047446. The cubic root of 1270489 is about 108.3071105499.

The spelling of 1270489 in words is "one million, two hundred seventy thousand, four hundred eighty-nine".