111741689 has 2 divisors, whose sum is σ = 111741690. Its totient is φ = 111741688.

The previous prime is 111741671. The next prime is 111741781. The reversal of 111741689 is 986147111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89491600 + 22250089 = 9460^2 + 4717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111741689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111747689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55870844 + 55870845.

It is an arithmetic number, because the mean of its divisors is an integer number (55870845).

Almost surely, 2^111741689 is an apocalyptic number.

It is an amenable number.

111741689 is a deficient number, since it is larger than the sum of its proper divisors (1).

111741689 is an equidigital number, since it uses as much as digits as its factorization.

111741689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 38.

The square root of 111741689 is about 10570.7941518128. The cubic root of 111741689 is about 481.6575924239.

The spelling of 111741689 in words is "one hundred eleven million, seven hundred forty-one thousand, six hundred eighty-nine".