111779359 has 2 divisors, whose sum is σ = 111779360. Its totient is φ = 111779358.

The previous prime is 111779329. The next prime is 111779363. The reversal of 111779359 is 953977111.

It is a strong prime.

It is an emirp because it is prime and its reverse (953977111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111779359 - 2¹¹ = 111777311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111779329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55889679 + 55889680.

It is an arithmetic number, because the mean of its divisors is an integer number (55889680).

Almost surely, 2^111779359 is an apocalyptic number.

111779359 is a deficient number, since it is larger than the sum of its proper divisors (1).

111779359 is an equidigital number, since it uses as much as digits as its factorization.

111779359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59535, while the sum is 43.

The square root of 111779359 is about 10572.5757977893. The cubic root of 111779359 is about 481.7117112974.

The spelling of 111779359 in words is "one hundred eleven million, seven hundred seventy-nine thousand, three hundred fifty-nine".