1270664741 has 4 divisors (see below), whose sum is σ = 1270737132. Its totient is φ = 1270592352.

The previous prime is 1270664737. The next prime is 1270664827. The reversal of 1270664741 is 1474660721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 711342241 + 559322500 = 26671^2 + 23650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1270664741 - 2² = 1270664737 is a prime.

It is a super-2 number, since 2×1270664741² = 3229177768041194162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1270664695 and 1270664704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270664041) 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 in 3 ways as a sum of consecutive naturals, for example, 8681 + ... + 51153.

It is an arithmetic number, because the mean of its divisors is an integer number (317684283).

Almost surely, 2^1270664741 is an apocalyptic number.

It is an amenable number.

1270664741 is a deficient number, since it is larger than the sum of its proper divisors (72391).

1270664741 is an equidigital number, since it uses as much as digits as its factorization.

1270664741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72390.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1270664741 is about 35646.3846834430. The cubic root of 1270664741 is about 1083.1210419732.

The spelling of 1270664741 in words is "one billion, two hundred seventy million, six hundred sixty-four thousand, seven hundred forty-one".