111774349 has 2 divisors, whose sum is σ = 111774350. Its totient is φ = 111774348.

The previous prime is 111774343. The next prime is 111774353. The reversal of 111774349 is 943477111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82937449 + 28836900 = 9107^2 + 5370^2 .

It is an emirp because it is prime and its reverse (943477111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111774349 - 2¹³ = 111766157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111774343) 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, 55887174 + 55887175.

It is an arithmetic number, because the mean of its divisors is an integer number (55887175).

Almost surely, 2^111774349 is an apocalyptic number.

It is an amenable number.

111774349 is a deficient number, since it is larger than the sum of its proper divisors (1).

111774349 is an equidigital number, since it uses as much as digits as its factorization.

111774349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 111774349 is about 10572.3388613873. The cubic root of 111774349 is about 481.7045143463.

It can be divided in two parts, 1117 and 74349, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 111774349 in words is "one hundred eleven million, seven hundred seventy-four thousand, three hundred forty-nine".