1144120217 has 2 divisors, whose sum is σ = 1144120218. Its totient is φ = 1144120216.

The previous prime is 1144120163. The next prime is 1144120231. The reversal of 1144120217 is 7120214411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1124663296 + 19456921 = 33536^2 + 4411^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144120217 - 2⁸ = 1144119961 is a prime.

It is a super-2 number, since 2×1144120217² = 2618022141896254178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1144120192 and 1144120201.

It is not a weakly prime, because it can be changed into another prime (1144120277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572060108 + 572060109.

It is an arithmetic number, because the mean of its divisors is an integer number (572060109).

Almost surely, 2^1144120217 is an apocalyptic number.

It is an amenable number.

1144120217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144120217 is an equidigital number, since it uses as much as digits as its factorization.

1144120217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1144120217 is about 33824.8461489480. The cubic root of 1144120217 is about 1045.9009398784.

Adding to 1144120217 its reverse (7120214411), we get a palindrome (8264334628).

The spelling of 1144120217 in words is "one billion, one hundred forty-four million, one hundred twenty thousand, two hundred seventeen".