109979459 has 2 divisors, whose sum is σ = 109979460. Its totient is φ = 109979458.

The previous prime is 109979437. The next prime is 109979501. The reversal of 109979459 is 954979901.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109979459 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109979459.

It is not a weakly prime, because it can be changed into another prime (109978459) 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, 54989729 + 54989730.

It is an arithmetic number, because the mean of its divisors is an integer number (54989730).

Almost surely, 2^109979459 is an apocalyptic number.

109979459 is a deficient number, since it is larger than the sum of its proper divisors (1).

109979459 is an equidigital number, since it uses as much as digits as its factorization.

109979459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 53.

The square root of 109979459 is about 10487.1091822294. The cubic root of 109979459 is about 479.1121594390.

The spelling of 109979459 in words is "one hundred nine million, nine hundred seventy-nine thousand, four hundred fifty-nine".