1049995744249 has 3 divisors (see below), whose sum is σ = 1049996768943. Its totient is φ = 1049994719556.

The previous prime is 1049995744243. The next prime is 1049995744289. The reversal of 1049995744249 is 9424475999401.

The square root of 1049995744249 is 1024693.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 657453397225 + 392542347024 = 810835^2 + 626532^2 .

It is not a de Polignac number, because 1049995744249 - 2³ = 1049995744241 is a prime.

It is a super-2 number, since 2×1049995744249² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1049995744241) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 512347 + ... + 1537039.

It is an arithmetic number, because the mean of its divisors is an integer number (349998922981).

Almost surely, 2^{1049995744249} is an apocalyptic number.

1049995744249 is the 1024693-rd square number.

1049995744249 is the 512347-th centered octagonal number.

It is an amenable number.

1049995744249 is a deficient number, since it is larger than the sum of its proper divisors (1024694).

1049995744249 is an frugal number, since it uses more digits than its factorization.

1049995744249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049386 (or 1024693 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 67.

The spelling of 1049995744249 in words is "one trillion, forty-nine billion, nine hundred ninety-five million, seven hundred forty-four thousand, two hundred forty-nine".