1262066461 has 2 divisors, whose sum is σ = 1262066462. Its totient is φ = 1262066460.

The previous prime is 1262066459. The next prime is 1262066479. The reversal of 1262066461 is 1646602621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 714225625 + 547840836 = 26725^2 + 23406^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262066461 - 2¹ = 1262066459 is a prime.

Together with 1262066459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1262066441) 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, 631033230 + 631033231.

It is an arithmetic number, because the mean of its divisors is an integer number (631033231).

Almost surely, 2^1262066461 is an apocalyptic number.

It is an amenable number.

1262066461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262066461 is an equidigital number, since it uses as much as digits as its factorization.

1262066461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1262066461 is about 35525.5747455266. The cubic root of 1262066461 is about 1080.6724381730.

The spelling of 1262066461 in words is "one billion, two hundred sixty-two million, sixty-six thousand, four hundred sixty-one".