1038142945449 has 9 divisors (see below), whose sum is σ = 1499544225309. Its totient is φ = 692093259180.

The previous prime is 1038142945417. The next prime is 1038142945457. The reversal of 1038142945449 is 9445492418301.

The square root of 1038142945449 is 1018893.

It is a perfect power (a square), and thus also a powerful number.

1038142945449 is a `hidden beast` number, since 1 + 0 + 3 + 8 + 1 + 4 + 2 + 94 + 544 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1038142945449 - 2⁵ = 1038142945417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1038142945395 and 1038142945404.

It is not an unprimeable number, because it can be changed into a prime (1038142945249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2886864 + ... + 3226494.

Almost surely, 2^{1038142945449} is an apocalyptic number.

1038142945449 is the 1018893-rd square number.

1038142945449 is the 509447-th centered octagonal number.

It is an amenable number.

1038142945449 is a deficient number, since it is larger than the sum of its proper divisors (461401279860).

1038142945449 is an frugal number, since it uses more digits than its factorization.

1038142945449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679268 (or 339634 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 1038142945449 in words is "one trillion, thirty-eight billion, one hundred forty-two million, nine hundred forty-five thousand, four hundred forty-nine".