1245917041 has 2 divisors, whose sum is σ = 1245917042. Its totient is φ = 1245917040.

The previous prime is 1245917011. The next prime is 1245917047. The reversal of 1245917041 is 1407195421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 884765025 + 361152016 = 29745^2 + 19004^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245917041 - 2⁷ = 1245916913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1245916988 and 1245917006.

It is not a weakly prime, because it can be changed into another prime (1245917047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622958520 + 622958521.

It is an arithmetic number, because the mean of its divisors is an integer number (622958521).

Almost surely, 2^1245917041 is an apocalyptic number.

It is an amenable number.

1245917041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245917041 is an equidigital number, since it uses as much as digits as its factorization.

1245917041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1245917041 is about 35297.5500707910. The cubic root of 1245917041 is about 1076.0432032261.

The spelling of 1245917041 in words is "one billion, two hundred forty-five million, nine hundred seventeen thousand, forty-one".