117440249 has 2 divisors, whose sum is σ = 117440250. Its totient is φ = 117440248.

The previous prime is 117440243. The next prime is 117440251. The reversal of 117440249 is 942044711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116748025 + 692224 = 10805^2 + 832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117440249 is a prime.

Together with 117440251, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_6704078 and since 117440249 and 6704078 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (117440243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58720124 + 58720125.

It is an arithmetic number, because the mean of its divisors is an integer number (58720125).

Almost surely, 2^117440249 is an apocalyptic number.

It is an amenable number.

117440249 is a deficient number, since it is larger than the sum of its proper divisors (1).

117440249 is an equidigital number, since it uses as much as digits as its factorization.

117440249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 117440249 is about 10836.9852357563. The cubic root of 117440249 is about 489.7100172318.

The spelling of 117440249 in words is "one hundred seventeen million, four hundred forty thousand, two hundred forty-nine".