117027661 has 2 divisors, whose sum is σ = 117027662. Its totient is φ = 117027660.

The previous prime is 117027649. The next prime is 117027683. The reversal of 117027661 is 166720711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92525161 + 24502500 = 9619^2 + 4950^2 .

It is a cyclic number.

It is not a de Polignac number, because 117027661 - 2⁵ = 117027629 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117027601) 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, 58513830 + 58513831.

It is an arithmetic number, because the mean of its divisors is an integer number (58513831).

Almost surely, 2^117027661 is an apocalyptic number.

It is an amenable number.

117027661 is a deficient number, since it is larger than the sum of its proper divisors (1).

117027661 is an equidigital number, since it uses as much as digits as its factorization.

117027661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 117027661 is about 10817.9323810052. The cubic root of 117027661 is about 489.1358655485.

The spelling of 117027661 in words is "one hundred seventeen million, twenty-seven thousand, six hundred sixty-one".