1229117693 has 2 divisors, whose sum is σ = 1229117694. Its totient is φ = 1229117692.

The previous prime is 1229117683. The next prime is 1229117711. The reversal of 1229117693 is 3967119221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 862127044 + 366990649 = 29362^2 + 19157^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229117693 - 2¹² = 1229113597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1229117693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229117683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614558846 + 614558847.

It is an arithmetic number, because the mean of its divisors is an integer number (614558847).

Almost surely, 2^1229117693 is an apocalyptic number.

It is an amenable number.

1229117693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229117693 is an equidigital number, since it uses as much as digits as its factorization.

1229117693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The square root of 1229117693 is about 35058.7748359808. The cubic root of 1229117693 is about 1071.1850186717.

The spelling of 1229117693 in words is "one billion, two hundred twenty-nine million, one hundred seventeen thousand, six hundred ninety-three".