117005813 has 2 divisors, whose sum is σ = 117005814. Its totient is φ = 117005812.

The previous prime is 117005797. The next prime is 117005851. The reversal of 117005813 is 318500711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71537764 + 45468049 = 8458^2 + 6743^2 .

It is a cyclic number.

It is not a de Polignac number, because 117005813 - 2⁴ = 117005797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117005893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58502906 + 58502907.

It is an arithmetic number, because the mean of its divisors is an integer number (58502907).

Almost surely, 2^117005813 is an apocalyptic number.

It is an amenable number.

117005813 is a deficient number, since it is larger than the sum of its proper divisors (1).

117005813 is an equidigital number, since it uses as much as digits as its factorization.

117005813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 117005813 is about 10816.9225290745. The cubic root of 117005813 is about 489.1054245815.

The spelling of 117005813 in words is "one hundred seventeen million, five thousand, eight hundred thirteen".