1269427 has 2 divisors, whose sum is σ = 1269428. Its totient is φ = 1269426.

The previous prime is 1269413. The next prime is 1269461. The reversal of 1269427 is 7249621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1269427 - 2⁷ = 1269299 is a prime.

It is a super-2 number, since 2×1269427² = 3222889816658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1269467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634713 + 634714.

It is an arithmetic number, because the mean of its divisors is an integer number (634714).

2^1269427 is an apocalyptic number.

1269427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1269427 is an equidigital number, since it uses as much as digits as its factorization.

1269427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 1269427 is about 1126.6885106364. The cubic root of 1269427 is about 108.2769242161.

It can be divided in two parts, 12694 and 27, that added together give a palindrome (12721).

The spelling of 1269427 in words is "one million, two hundred sixty-nine thousand, four hundred twenty-seven".