1415109779 has 2 divisors, whose sum is σ = 1415109780. Its totient is φ = 1415109778.

The previous prime is 1415109763. The next prime is 1415109791. The reversal of 1415109779 is 9779015141.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1415109779 - 2⁴ = 1415109763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1415109719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707554889 + 707554890.

It is an arithmetic number, because the mean of its divisors is an integer number (707554890).

Almost surely, 2^1415109779 is an apocalyptic number.

1415109779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1415109779 is an equidigital number, since it uses as much as digits as its factorization.

1415109779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 44.

The square root of 1415109779 is about 37617.9449066533. The cubic root of 1415109779 is about 1122.6991074427.

The spelling of 1415109779 in words is "one billion, four hundred fifteen million, one hundred nine thousand, seven hundred seventy-nine".