1272049 has 2 divisors, whose sum is σ = 1272050. Its totient is φ = 1272048.

The previous prime is 1272043. The next prime is 1272067. The reversal of 1272049 is 9402721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1065024 + 207025 = 1032^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272049 - 2¹¹ = 1270001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1272043) 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 as a sum of consecutive naturals, namely, 636024 + 636025.

It is an arithmetic number, because the mean of its divisors is an integer number (636025).

2^1272049 is an apocalyptic number.

It is an amenable number.

1272049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272049 is an equidigital number, since it uses as much as digits as its factorization.

1272049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1272049 is about 1127.8514973169. The cubic root of 1272049 is about 108.3514215688.

It can be divided in two parts, 12720 and 49, that added together give a square (12769 = 113²).

The spelling of 1272049 in words is "one million, two hundred seventy-two thousand, forty-nine".