1144111469 has 2 divisors, whose sum is σ = 1144111470. Its totient is φ = 1144111468.

The previous prime is 1144111439. The next prime is 1144111483. The reversal of 1144111469 is 9641114411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050602569 + 93508900 = 32413^2 + 9670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144111469 - 2²⁸ = 875676013 is a prime.

It is a super-2 number, since 2×1144111469² = 2617982106994675922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144111439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572055734 + 572055735.

It is an arithmetic number, because the mean of its divisors is an integer number (572055735).

Almost surely, 2^1144111469 is an apocalyptic number.

It is an amenable number.

1144111469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144111469 is an equidigital number, since it uses as much as digits as its factorization.

1144111469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 32.

The square root of 1144111469 is about 33824.7168354740. The cubic root of 1144111469 is about 1045.8982742015.

The spelling of 1144111469 in words is "one billion, one hundred forty-four million, one hundred eleven thousand, four hundred sixty-nine".