1144057217 has 2 divisors, whose sum is σ = 1144057218. Its totient is φ = 1144057216.

The previous prime is 1144057193. The next prime is 1144057219. The reversal of 1144057217 is 7127504411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 856381696 + 287675521 = 29264^2 + 16961^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144057217 - 2¹² = 1144053121 is a prime.

Together with 1144057219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1144057219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572028608 + 572028609.

It is an arithmetic number, because the mean of its divisors is an integer number (572028609).

Almost surely, 2^1144057217 is an apocalyptic number.

It is an amenable number.

1144057217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144057217 is an equidigital number, since it uses as much as digits as its factorization.

1144057217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 1144057217 is about 33823.9148680338. The cubic root of 1144057217 is about 1045.8817423129.

The spelling of 1144057217 in words is "one billion, one hundred forty-four million, fifty-seven thousand, two hundred seventeen".