1141111249 has 2 divisors, whose sum is σ = 1141111250. Its totient is φ = 1141111248.

The previous prime is 1141111199. The next prime is 1141111273. The reversal of 1141111249 is 9421111411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 987970624 + 153140625 = 31432^2 + 12375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141111249 - 2²⁷ = 1006893521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1141111289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570555624 + 570555625.

It is an arithmetic number, because the mean of its divisors is an integer number (570555625).

Almost surely, 2^1141111249 is an apocalyptic number.

It is an amenable number.

1141111249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141111249 is an equidigital number, since it uses as much as digits as its factorization.

1141111249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 25.

The square root of 1141111249 is about 33780.3382013857. The cubic root of 1141111249 is about 1044.9832491992.

The spelling of 1141111249 in words is "one billion, one hundred forty-one million, one hundred eleven thousand, two hundred forty-nine".