117042449 has 2 divisors, whose sum is σ = 117042450. Its totient is φ = 117042448.

The previous prime is 117042437. The next prime is 117042473. The reversal of 117042449 is 944240711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84916225 + 32126224 = 9215^2 + 5668^2 .

It is an emirp because it is prime and its reverse (944240711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117042449 is a prime.

It is not a weakly prime, because it can be changed into another prime (117042479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58521224 + 58521225.

It is an arithmetic number, because the mean of its divisors is an integer number (58521225).

Almost surely, 2^117042449 is an apocalyptic number.

It is an amenable number.

117042449 is a deficient number, since it is larger than the sum of its proper divisors (1).

117042449 is an equidigital number, since it uses as much as digits as its factorization.

117042449 is an evil number, because the sum of its binary digits is even.

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

The square root of 117042449 is about 10818.6158541654. The cubic root of 117042449 is about 489.1564676195.

The spelling of 117042449 in words is "one hundred seventeen million, forty-two thousand, four hundred forty-nine".