117306819 has 16 divisors (see below), whose sum is σ = 198615040. Its totient is φ = 67032360.

The previous prime is 117306799. The next prime is 117306823. The reversal of 117306819 is 918603711.

It is not a de Polignac number, because 117306819 - 2¹³ = 117298627 is a prime.

It is a super-2 number, since 2×117306819² = 27521779567797522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117306829) 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 in 15 ways as a sum of consecutive naturals, for example, 310147 + ... + 310524.

It is an arithmetic number, because the mean of its divisors is an integer number (12413440).

Almost surely, 2^117306819 is an apocalyptic number.

117306819 is a deficient number, since it is larger than the sum of its proper divisors (81308221).

117306819 is an equidigital number, since it uses as much as digits as its factorization.

117306819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620687 (or 620681 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 117306819 is about 10830.8272537235. The cubic root of 117306819 is about 489.5244852416.

It can be divided in two parts, 117 and 306819, that added together give a triangular number (306936 = T₇₈₃).

The spelling of 117306819 in words is "one hundred seventeen million, three hundred six thousand, eight hundred nineteen".