117884249 has 12 divisors (see below), whose sum is σ = 137395764. Its totient is φ = 100848384.

The previous prime is 117884237. The next prime is 117884279. The reversal of 117884249 is 942488711.

117884249 = 1527² + 1528² + ... + 1575².

It can be written as a sum of positive squares in 2 ways, for example, as 66504025 + 51380224 = 8155^2 + 7168^2 .

It is not a de Polignac number, because 117884249 - 2⁴ = 117884233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117884279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27029 + ... + 31085.

It is an arithmetic number, because the mean of its divisors is an integer number (11449647).

Almost surely, 2^117884249 is an apocalyptic number.

It is an amenable number.

117884249 is a deficient number, since it is larger than the sum of its proper divisors (19511515).

117884249 is an equidigital number, since it uses as much as digits as its factorization.

117884249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664 (or 4657 counting only the distinct ones).

The product of its digits is 129024, while the sum is 44.

The square root of 117884249 is about 10857.4513123477. The cubic root of 117884249 is about 490.3263811939.

The spelling of 117884249 in words is "one hundred seventeen million, eight hundred eighty-four thousand, two hundred forty-nine".