1229826061 has 2 divisors, whose sum is σ = 1229826062. Its totient is φ = 1229826060.

The previous prime is 1229826049. The next prime is 1229826097. The reversal of 1229826061 is 1606289221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1067263561 + 162562500 = 32669^2 + 12750^2 .

It is an emirp because it is prime and its reverse (1606289221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1229826061 - 2⁵ = 1229826029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1229826061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229820061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614913030 + 614913031.

It is an arithmetic number, because the mean of its divisors is an integer number (614913031).

Almost surely, 2^1229826061 is an apocalyptic number.

It is an amenable number.

1229826061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229826061 is an equidigital number, since it uses as much as digits as its factorization.

1229826061 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 37.

The square root of 1229826061 is about 35068.8759586047. The cubic root of 1229826061 is about 1071.3907617752.

The spelling of 1229826061 in words is "one billion, two hundred twenty-nine million, eight hundred twenty-six thousand, sixty-one".