1144168457 has 2 divisors, whose sum is σ = 1144168458. Its totient is φ = 1144168456.

The previous prime is 1144168451. The next prime is 1144168463. The reversal of 1144168457 is 7548614411.

It is a balanced prime because it is at equal distance from previous prime (1144168451) and next prime (1144168463).

It can be written as a sum of positive squares in only one way, i.e., 750979216 + 393189241 = 27404^2 + 19829^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144168457 - 2²² = 1139974153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144168451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572084228 + 572084229.

It is an arithmetic number, because the mean of its divisors is an integer number (572084229).

Almost surely, 2^1144168457 is an apocalyptic number.

It is an amenable number.

1144168457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144168457 is an equidigital number, since it uses as much as digits as its factorization.

1144168457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 41.

The square root of 1144168457 is about 33825.5592267149. The cubic root of 1144168457 is about 1045.9156392522.

The spelling of 1144168457 in words is "one billion, one hundred forty-four million, one hundred sixty-eight thousand, four hundred fifty-seven".