1013404109 has 2 divisors, whose sum is σ = 1013404110. Its totient is φ = 1013404108.

The previous prime is 1013404069. The next prime is 1013404111. The reversal of 1013404109 is 9014043101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547794025 + 465610084 = 23405^2 + 21578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013404109 is a prime.

It is a Sophie Germain prime.

Together with 1013404111, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013404009) 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, 506702054 + 506702055.

It is an arithmetic number, because the mean of its divisors is an integer number (506702055).

Almost surely, 2^1013404109 is an apocalyptic number.

It is an amenable number.

1013404109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013404109 is an equidigital number, since it uses as much as digits as its factorization.

1013404109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1013404109 is about 31834.0086856808. The cubic root of 1013404109 is about 1004.4482203307.

The spelling of 1013404109 in words is "one billion, thirteen million, four hundred four thousand, one hundred nine".