1001144047 has 2 divisors, whose sum is σ = 1001144048. Its totient is φ = 1001144046.

The previous prime is 1001144033. The next prime is 1001144057. The reversal of 1001144047 is 7404411001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001144047 - 2¹⁹ = 1000619759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001144057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500572023 + 500572024.

It is an arithmetic number, because the mean of its divisors is an integer number (500572024).

Almost surely, 2^1001144047 is an apocalyptic number.

1001144047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001144047 is an equidigital number, since it uses as much as digits as its factorization.

1001144047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1001144047 is about 31640.8604023342. The cubic root of 1001144047 is about 1000.3812036653.

Adding to 1001144047 its reverse (7404411001), we get a palindrome (8405555048).

The spelling of 1001144047 in words is "one billion, one million, one hundred forty-four thousand, forty-seven".