1441311247 has 2 divisors, whose sum is σ = 1441311248. Its totient is φ = 1441311246.

The previous prime is 1441311173. The next prime is 1441311257. The reversal of 1441311247 is 7421131441.

It is a strong prime.

It is an emirp because it is prime and its reverse (7421131441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441311247 is a prime.

It is a super-2 number, since 2×1441311247² = 4154756221457390018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441311257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720655623 + 720655624.

It is an arithmetic number, because the mean of its divisors is an integer number (720655624).

Almost surely, 2^1441311247 is an apocalyptic number.

1441311247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441311247 is an equidigital number, since it uses as much as digits as its factorization.

1441311247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

The square root of 1441311247 is about 37964.6051869370. The cubic root of 1441311247 is about 1129.5858891919.

Adding to 1441311247 its reverse (7421131441), we get a palindrome (8862442688).

The spelling of 1441311247 in words is "one billion, four hundred forty-one million, three hundred eleven thousand, two hundred forty-seven".