1261467763 has 2 divisors, whose sum is σ = 1261467764. Its totient is φ = 1261467762.

The previous prime is 1261467761. The next prime is 1261467793. The reversal of 1261467763 is 3677641621.

It is a weak prime.

It is an emirp because it is prime and its reverse (3677641621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1261467763 - 2¹ = 1261467761 is a prime.

Together with 1261467761, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1261467761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630733881 + 630733882.

It is an arithmetic number, because the mean of its divisors is an integer number (630733882).

Almost surely, 2^1261467763 is an apocalyptic number.

1261467763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1261467763 is an equidigital number, since it uses as much as digits as its factorization.

1261467763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The square root of 1261467763 is about 35517.1474502106. The cubic root of 1261467763 is about 1080.5015283249.

The spelling of 1261467763 in words is "one billion, two hundred sixty-one million, four hundred sixty-seven thousand, seven hundred sixty-three".