1005254143469 has 2 divisors, whose sum is σ = 1005254143470. Its totient is φ = 1005254143468.

The previous prime is 1005254143427. The next prime is 1005254143477. The reversal of 1005254143469 is 9643414525001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1004555175625 + 698967844 = 1002275^2 + 26438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005254143469 is a prime.

It is a super-2 number, since 2×1005254143469² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005254143499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502627071734 + 502627071735.

It is an arithmetic number, because the mean of its divisors is an integer number (502627071735).

Almost surely, 2^{1005254143469} is an apocalyptic number.

It is an amenable number.

1005254143469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005254143469 is an equidigital number, since it uses as much as digits as its factorization.

1005254143469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1005254143469 in words is "one trillion, five billion, two hundred fifty-four million, one hundred forty-three thousand, four hundred sixty-nine".