1144505347 has 2 divisors, whose sum is σ = 1144505348. Its totient is φ = 1144505346.

The previous prime is 1144505321. The next prime is 1144505381. The reversal of 1144505347 is 7435054411.

It is an a-pointer prime, because the next prime (1144505381) can be obtained adding 1144505347 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (7435054411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144505347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144500347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572252673 + 572252674.

It is an arithmetic number, because the mean of its divisors is an integer number (572252674).

Almost surely, 2^1144505347 is an apocalyptic number.

1144505347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144505347 is an equidigital number, since it uses as much as digits as its factorization.

1144505347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 1144505347 is about 33830.5386743989. The cubic root of 1144505347 is about 1046.0182826291.

Adding to 1144505347 its reverse (7435054411), we get a palindrome (8579559758).

The spelling of 1144505347 in words is "one billion, one hundred forty-four million, five hundred five thousand, three hundred forty-seven".