111900449 has 2 divisors, whose sum is σ = 111900450. Its totient is φ = 111900448.

The previous prime is 111900433. The next prime is 111900479. The reversal of 111900449 is 944009111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94926049 + 16974400 = 9743^2 + 4120^2 .

It is a cyclic number.

It is not a de Polignac number, because 111900449 - 2⁴ = 111900433 is a prime.

It is not a weakly prime, because it can be changed into another prime (111900479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55950224 + 55950225.

It is an arithmetic number, because the mean of its divisors is an integer number (55950225).

Almost surely, 2^111900449 is an apocalyptic number.

It is an amenable number.

111900449 is a deficient number, since it is larger than the sum of its proper divisors (1).

111900449 is an equidigital number, since it uses as much as digits as its factorization.

111900449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 111900449 is about 10578.3008559976. The cubic root of 111900449 is about 481.8855937902.

The spelling of 111900449 in words is "one hundred eleven million, nine hundred thousand, four hundred forty-nine".