115920449 has 2 divisors, whose sum is σ = 115920450. Its totient is φ = 115920448.

The previous prime is 115920419. The next prime is 115920457. The reversal of 115920449 is 944029511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80874049 + 35046400 = 8993^2 + 5920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115920449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115920419) 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 as a sum of consecutive naturals, namely, 57960224 + 57960225.

It is an arithmetic number, because the mean of its divisors is an integer number (57960225).

Almost surely, 2^115920449 is an apocalyptic number.

It is an amenable number.

115920449 is a deficient number, since it is larger than the sum of its proper divisors (1).

115920449 is an equidigital number, since it uses as much as digits as its factorization.

115920449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 115920449 is about 10766.6359184287. The cubic root of 115920449 is about 487.5883849389.

The spelling of 115920449 in words is "one hundred fifteen million, nine hundred twenty thousand, four hundred forty-nine".