1270535969 has 2 divisors, whose sum is σ = 1270535970. Its totient is φ = 1270535968.

The previous prime is 1270535951. The next prime is 1270535971. The reversal of 1270535969 is 9695350721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1231097569 + 39438400 = 35087^2 + 6280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1270535969 is a prime.

It is a super-2 number, since 2×1270535969² = 3228523297045537922, which contains 22 as substring.

Together with 1270535971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1270535369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635267984 + 635267985.

It is an arithmetic number, because the mean of its divisors is an integer number (635267985).

Almost surely, 2^1270535969 is an apocalyptic number.

It is an amenable number.

1270535969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270535969 is an equidigital number, since it uses as much as digits as its factorization.

1270535969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 510300, while the sum is 47.

The square root of 1270535969 is about 35644.5783955990. The cubic root of 1270535969 is about 1083.0844521027.

The spelling of 1270535969 in words is "one billion, two hundred seventy million, five hundred thirty-five thousand, nine hundred sixty-nine".