1144664047 has 2 divisors, whose sum is σ = 1144664048. Its totient is φ = 1144664046.

The previous prime is 1144664033. The next prime is 1144664051. The reversal of 1144664047 is 7404664411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144664047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1144663997 and 1144664015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144665047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572332023 + 572332024.

It is an arithmetic number, because the mean of its divisors is an integer number (572332024).

Almost surely, 2^1144664047 is an apocalyptic number.

1144664047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144664047 is an equidigital number, since it uses as much as digits as its factorization.

1144664047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 1144664047 is about 33832.8841070341. The cubic root of 1144664047 is about 1046.0666282396.

The spelling of 1144664047 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, forty-seven".