1226530771 has 2 divisors, whose sum is σ = 1226530772. Its totient is φ = 1226530770.

The previous prime is 1226530741. The next prime is 1226530787. The reversal of 1226530771 is 1770356221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1226530771 - 2¹⁵ = 1226498003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1226530741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613265385 + 613265386.

It is an arithmetic number, because the mean of its divisors is an integer number (613265386).

Almost surely, 2^1226530771 is an apocalyptic number.

1226530771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226530771 is an equidigital number, since it uses as much as digits as its factorization.

1226530771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 1226530771 is about 35021.8613297466. The cubic root of 1226530771 is about 1070.4329837029.

Adding to 1226530771 its reverse (1770356221), we get a palindrome (2996886992).

The spelling of 1226530771 in words is "one billion, two hundred twenty-six million, five hundred thirty thousand, seven hundred seventy-one".