1229362961 has 2 divisors, whose sum is σ = 1229362962. Its totient is φ = 1229362960.

The previous prime is 1229362957. The next prime is 1229363029. The reversal of 1229362961 is 1692639221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 760380625 + 468982336 = 27575^2 + 21656^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229362961 - 2² = 1229362957 is a prime.

It is a super-2 number, since 2×1229362961² = 3022666579757375042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1229368961) 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, 614681480 + 614681481.

It is an arithmetic number, because the mean of its divisors is an integer number (614681481).

Almost surely, 2^1229362961 is an apocalyptic number.

It is an amenable number.

1229362961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229362961 is an equidigital number, since it uses as much as digits as its factorization.

1229362961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 1229362961 is about 35062.2726160185. The cubic root of 1229362961 is about 1071.2562648821.

The spelling of 1229362961 in words is "one billion, two hundred twenty-nine million, three hundred sixty-two thousand, nine hundred sixty-one".