1272269 has 2 divisors, whose sum is σ = 1272270. Its totient is φ = 1272268.

The previous prime is 1272253. The next prime is 1272281. The reversal of 1272269 is 9622721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 702244 + 570025 = 838^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272269 - 2⁴ = 1272253 is a prime.

It is a super-2 number, since 2×1272269² = 3237336816722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636134 + 636135.

It is an arithmetic number, because the mean of its divisors is an integer number (636135).

2^1272269 is an apocalyptic number.

It is an amenable number.

1272269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272269 is an equidigital number, since it uses as much as digits as its factorization.

1272269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 1272269 is about 1127.9490236708. The cubic root of 1272269 is about 108.3576676433.

The spelling of 1272269 in words is "one million, two hundred seventy-two thousand, two hundred sixty-nine".