1272043 has 2 divisors, whose sum is σ = 1272044. Its totient is φ = 1272042.

The previous prime is 1272001. The next prime is 1272049. The reversal of 1272043 is 3402721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1272043 - 2⁹ = 1271531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1272043.

It is not a weakly prime, because it can be changed into another prime (1272049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636021 + 636022.

It is an arithmetic number, because the mean of its divisors is an integer number (636022).

2^1272043 is an apocalyptic number.

1272043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272043 is an equidigital number, since it uses as much as digits as its factorization.

1272043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1272043 is about 1127.8488373891. The cubic root of 1272043 is about 108.3512512112.

Adding to 1272043 its reverse (3402721), we get a palindrome (4674764).

The spelling of 1272043 in words is "one million, two hundred seventy-two thousand, forty-three".