1241082091 has 2 divisors, whose sum is σ = 1241082092. Its totient is φ = 1241082090.

The previous prime is 1241081987. The next prime is 1241082103. The reversal of 1241082091 is 1902801421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1241082091 - 2¹⁵ = 1241049323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1241082391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620541045 + 620541046.

It is an arithmetic number, because the mean of its divisors is an integer number (620541046).

Almost surely, 2^1241082091 is an apocalyptic number.

1241082091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241082091 is an equidigital number, since it uses as much as digits as its factorization.

1241082091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1241082091 is about 35228.9950325013. The cubic root of 1241082091 is about 1074.6494883215.

The spelling of 1241082091 in words is "one billion, two hundred forty-one million, eighty-two thousand, ninety-one".