1245344041 has 2 divisors, whose sum is σ = 1245344042. Its totient is φ = 1245344040.

The previous prime is 1245343973. The next prime is 1245344069. The reversal of 1245344041 is 1404435421.

It is an a-pointer prime, because the next prime (1245344069) can be obtained adding 1245344041 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1093955625 + 151388416 = 33075^2 + 12304^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245344041 - 2²¹ = 1243246889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245344641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622672020 + 622672021.

It is an arithmetic number, because the mean of its divisors is an integer number (622672021).

Almost surely, 2^1245344041 is an apocalyptic number.

It is an amenable number.

1245344041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245344041 is an equidigital number, since it uses as much as digits as its factorization.

1245344041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1245344041 is about 35289.4324267195. The cubic root of 1245344041 is about 1075.8782197158.

Adding to 1245344041 its reverse (1404435421), we get a palindrome (2649779462).

The spelling of 1245344041 in words is "one billion, two hundred forty-five million, three hundred forty-four thousand, forty-one".