1144162457 has 2 divisors, whose sum is σ = 1144162458. Its totient is φ = 1144162456.

The previous prime is 1144162429. The next prime is 1144162471. The reversal of 1144162457 is 7542614411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1018184281 + 125978176 = 31909^2 + 11224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144162457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144168457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572081228 + 572081229.

It is an arithmetic number, because the mean of its divisors is an integer number (572081229).

Almost surely, 2^1144162457 is an apocalyptic number.

It is an amenable number.

1144162457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144162457 is an equidigital number, since it uses as much as digits as its factorization.

1144162457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 1144162457 is about 33825.4705362690. The cubic root of 1144162457 is about 1045.9138109944.

Adding to 1144162457 its reverse (7542614411), we get a palindrome (8686776868).

The spelling of 1144162457 in words is "one billion, one hundred forty-four million, one hundred sixty-two thousand, four hundred fifty-seven".