117490661 has 8 divisors (see below), whose sum is σ = 124070880. Its totient is φ = 110950128.

The previous prime is 117490649. The next prime is 117490717. The reversal of 117490661 is 166094711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117490661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117490631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3731 + ... + 15776.

It is an arithmetic number, because the mean of its divisors is an integer number (15508860).

Almost surely, 2^117490661 is an apocalyptic number.

It is an amenable number.

117490661 is a deficient number, since it is larger than the sum of its proper divisors (6580219).

117490661 is a wasteful number, since it uses less digits than its factorization.

117490661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19843.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 117490661 is about 10839.3109098319. The cubic root of 117490661 is about 489.7800776244.

The spelling of 117490661 in words is "one hundred seventeen million, four hundred ninety thousand, six hundred sixty-one".