1979914159 has 2 divisors, whose sum is σ = 1979914160. Its totient is φ = 1979914158.

The previous prime is 1979914093. The next prime is 1979914199. The reversal of 1979914159 is 9514199791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1979914159 - 2⁷ = 1979914031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1979914199) 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, 989957079 + 989957080.

It is an arithmetic number, because the mean of its divisors is an integer number (989957080).

Almost surely, 2^1979914159 is an apocalyptic number.

1979914159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1979914159 is an equidigital number, since it uses as much as digits as its factorization.

1979914159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 918540, while the sum is 55.

The square root of 1979914159 is about 44496.2263456127. The cubic root of 1979914159 is about 1255.6890887209.

The spelling of 1979914159 in words is "one billion, nine hundred seventy-nine million, nine hundred fourteen thousand, one hundred fifty-nine".