1111199149 has 2 divisors, whose sum is σ = 1111199150. Its totient is φ = 1111199148.

The previous prime is 1111199099. The next prime is 1111199153. The reversal of 1111199149 is 9419911111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1110888900 + 310249 = 33330^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111199149 - 2⁹ = 1111198637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111199449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555599574 + 555599575.

It is an arithmetic number, because the mean of its divisors is an integer number (555599575).

Almost surely, 2^1111199149 is an apocalyptic number.

It is an amenable number.

1111199149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111199149 is an equidigital number, since it uses as much as digits as its factorization.

1111199149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 37.

The square root of 1111199149 is about 33334.6538755092. The cubic root of 1111199149 is about 1035.7715233478.

The spelling of 1111199149 in words is "one billion, one hundred eleven million, one hundred ninety-nine thousand, one hundred forty-nine".