1229059679 has 2 divisors, whose sum is σ = 1229059680. Its totient is φ = 1229059678.

The previous prime is 1229059613. The next prime is 1229059687. The reversal of 1229059679 is 9769509221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1229059679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229058679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614529839 + 614529840.

It is an arithmetic number, because the mean of its divisors is an integer number (614529840).

Almost surely, 2^1229059679 is an apocalyptic number.

1229059679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229059679 is an equidigital number, since it uses as much as digits as its factorization.

1229059679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 1229059679 is about 35057.9474441959. The cubic root of 1229059679 is about 1071.1681651987.

The spelling of 1229059679 in words is "one billion, two hundred twenty-nine million, fifty-nine thousand, six hundred seventy-nine".