117030661 has 8 divisors (see below), whose sum is σ = 127748448. Its totient is φ = 106326000.

The previous prime is 117030643. The next prime is 117030701. The reversal of 117030661 is 166030711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117030661 - 2²¹ = 114933509 is a prime.

It is a super-2 number, since 2×117030661² = 27392351228193842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117000661) 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 in 7 ways as a sum of consecutive naturals, for example, 30891 + ... + 34471.

It is an arithmetic number, because the mean of its divisors is an integer number (15968556).

Almost surely, 2^117030661 is an apocalyptic number.

117030661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

117030661 is a deficient number, since it is larger than the sum of its proper divisors (10717787).

117030661 is a wasteful number, since it uses less digits than its factorization.

117030661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 117030661 is about 10818.0710387758. The cubic root of 117030661 is about 489.1400451731.

Subtracting 117030661 from its reverse (166030711), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 117030661 in words is "one hundred seventeen million, thirty thousand, six hundred sixty-one".