111952889 has 2 divisors, whose sum is σ = 111952890. Its totient is φ = 111952888.

The previous prime is 111952859. The next prime is 111952903. The reversal of 111952889 is 988259111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110607289 + 1345600 = 10517^2 + 1160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111952889 is a prime.

It is not a weakly prime, because it can be changed into another prime (111952859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55976444 + 55976445.

It is an arithmetic number, because the mean of its divisors is an integer number (55976445).

Almost surely, 2^111952889 is an apocalyptic number.

It is an amenable number.

111952889 is a deficient number, since it is larger than the sum of its proper divisors (1).

111952889 is an equidigital number, since it uses as much as digits as its factorization.

111952889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 44.

The square root of 111952889 is about 10580.7792246129. The cubic root of 111952889 is about 481.9608575159.

The spelling of 111952889 in words is "one hundred eleven million, nine hundred fifty-two thousand, eight hundred eighty-nine".