117380881 has 2 divisors, whose sum is σ = 117380882. Its totient is φ = 117380880.

The previous prime is 117380873. The next prime is 117380899. The reversal of 117380881 is 188083711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94187025 + 23193856 = 9705^2 + 4816^2 .

It is a cyclic number.

It is not a de Polignac number, because 117380881 - 2³ = 117380873 is a prime.

It is a super-2 number, since 2×117380881² = 27556542448672322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117380881.

It is not a weakly prime, because it can be changed into another prime (117380831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58690440 + 58690441.

It is an arithmetic number, because the mean of its divisors is an integer number (58690441).

Almost surely, 2^117380881 is an apocalyptic number.

It is an amenable number.

117380881 is a deficient number, since it is larger than the sum of its proper divisors (1).

117380881 is an equidigital number, since it uses as much as digits as its factorization.

117380881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 37.

The square root of 117380881 is about 10834.2457513202. The cubic root of 117380881 is about 489.6274844690.

The spelling of 117380881 in words is "one hundred seventeen million, three hundred eighty thousand, eight hundred eighty-one".