1241125709 has 2 divisors, whose sum is σ = 1241125710. Its totient is φ = 1241125708.

The previous prime is 1241125693. The next prime is 1241125723. The reversal of 1241125709 is 9075211421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 839724484 + 401401225 = 28978^2 + 20035^2 .

It is an emirp because it is prime and its reverse (9075211421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1241125709 - 2⁴ = 1241125693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241125729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620562854 + 620562855.

It is an arithmetic number, because the mean of its divisors is an integer number (620562855).

Almost surely, 2^1241125709 is an apocalyptic number.

It is an amenable number.

1241125709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241125709 is an equidigital number, since it uses as much as digits as its factorization.

1241125709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1241125709 is about 35229.6140909888. The cubic root of 1241125709 is about 1074.6620777418.

The spelling of 1241125709 in words is "one billion, two hundred forty-one million, one hundred twenty-five thousand, seven hundred nine".