1244313541 has 2 divisors, whose sum is σ = 1244313542. Its totient is φ = 1244313540.

The previous prime is 1244313533. The next prime is 1244313601. The reversal of 1244313541 is 1453134421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 652802500 + 591511041 = 25550^2 + 24321^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244313541 - 2³ = 1244313533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244317541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622156770 + 622156771.

It is an arithmetic number, because the mean of its divisors is an integer number (622156771).

Almost surely, 2^1244313541 is an apocalyptic number.

It is an amenable number.

1244313541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244313541 is an equidigital number, since it uses as much as digits as its factorization.

1244313541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

The square root of 1244313541 is about 35274.8287168060. The cubic root of 1244313541 is about 1075.5813811402.

Adding to 1244313541 its reverse (1453134421), we get a palindrome (2697447962).

The spelling of 1244313541 in words is "one billion, two hundred forty-four million, three hundred thirteen thousand, five hundred forty-one".