1278043 has 8 divisors (see below), whose sum is σ = 1457568. Its totient is φ = 1110144.

The previous prime is 1278031. The next prime is 1278047. The reversal of 1278043 is 3408721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1278043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1277999 and 1278017.

It is not an unprimeable number, because it can be changed into a prime (1278047) 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, 2671 + ... + 3112.

It is an arithmetic number, because the mean of its divisors is an integer number (182196).

2^1278043 is an apocalyptic number.

1278043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1278043 is a deficient number, since it is larger than the sum of its proper divisors (179525).

1278043 is a wasteful number, since it uses less digits than its factorization.

1278043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5813.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1278043 is about 1130.5056390837. The cubic root of 1278043 is about 108.5213419053.

The spelling of 1278043 in words is "one million, two hundred seventy-eight thousand, forty-three".