117235381 has 4 divisors (see below), whose sum is σ = 117304012. Its totient is φ = 117166752.

The previous prime is 117235379. The next prime is 117235387. The reversal of 117235381 is 183532711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2531281 + 114704100 = 1591^2 + 10710^2 .

It is a cyclic number.

It is not a de Polignac number, because 117235381 - 2¹ = 117235379 is a prime.

It is a super-2 number, since 2×117235381² = 27488269116430322, 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 (117235387) 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 3 ways as a sum of consecutive naturals, for example, 31686 + ... + 35191.

It is an arithmetic number, because the mean of its divisors is an integer number (29326003).

Almost surely, 2^117235381 is an apocalyptic number.

It is an amenable number.

117235381 is a deficient number, since it is larger than the sum of its proper divisors (68631).

117235381 is an equidigital number, since it uses as much as digits as its factorization.

117235381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68630.

The product of its digits is 5040, while the sum is 31.

The square root of 117235381 is about 10827.5288501116. The cubic root of 117235381 is about 489.4250941697.

The spelling of 117235381 in words is "one hundred seventeen million, two hundred thirty-five thousand, three hundred eighty-one".