1270669 has 2 divisors, whose sum is σ = 1270670. Its totient is φ = 1270668.

The previous prime is 1270667. The next prime is 1270679. The reversal of 1270669 is 9660721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 864900 + 405769 = 930^2 + 637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1270669 - 2¹ = 1270667 is a prime.

It is a super-2 number, since 2×1270669² = 3229199415122, which contains 22 as substring.

Together with 1270667, it forms a pair of twin primes.

It is a Chen prime.

1270669 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1270669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270667) 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, 635334 + 635335.

It is an arithmetic number, because the mean of its divisors is an integer number (635335).

2^1270669 is an apocalyptic number.

It is an amenable number.

1270669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270669 is an equidigital number, since it uses as much as digits as its factorization.

1270669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1270669 is about 1127.2395486320. The cubic root of 1270669 is about 108.3122252103.

The spelling of 1270669 in words is "one million, two hundred seventy thousand, six hundred sixty-nine".