1287041 has 8 divisors (see below), whose sum is σ = 1548480. Its totient is φ = 1045008.

The previous prime is 1287007. The next prime is 1287047. The reversal of 1287041 is 1407821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1287041 - 2¹⁰ = 1286017 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1286998 and 1287016.

It is not an unprimeable number, because it can be changed into a prime (1287047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706 + ... + 4971.

It is an arithmetic number, because the mean of its divisors is an integer number (193560).

2^1287041 is an apocalyptic number.

It is an amenable number.

1287041 is a deficient number, since it is larger than the sum of its proper divisors (261439).

1287041 is an equidigital number, since it uses as much as digits as its factorization.

1287041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9703.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1287041 is about 1134.4782941952. The cubic root of 1287041 is about 108.7754263003.

The spelling of 1287041 in words is "one million, two hundred eighty-seven thousand, forty-one".