415911109 has 2 divisors, whose sum is σ = 415911110. Its totient is φ = 415911108.

The previous prime is 415911107. The next prime is 415911161. The reversal of 415911109 is 901119514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272151009 + 143760100 = 16497^2 + 11990^2 .

It is a cyclic number.

It is not a de Polignac number, because 415911109 - 2¹ = 415911107 is a prime.

Together with 415911107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415911101) 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, 207955554 + 207955555.

It is an arithmetic number, because the mean of its divisors is an integer number (207955555).

Almost surely, 2^415911109 is an apocalyptic number.

It is an amenable number.

415911109 is a deficient number, since it is larger than the sum of its proper divisors (1).

415911109 is an equidigital number, since it uses as much as digits as its factorization.

415911109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 31.

The square root of 415911109 is about 20393.8988180289. The cubic root of 415911109 is about 746.4490566384.

The spelling of 415911109 in words is "four hundred fifteen million, nine hundred eleven thousand, one hundred nine".