1053277321849 has 3 divisors (see below), whose sum is σ = 1053278348143. Its totient is φ = 1053276295556.

The previous prime is 1053277321843. The next prime is 1053277321853. The reversal of 1053277321849 is 9481237723501.

The square root of 1053277321849 is 1026293.

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., 712141893225 + 341135428624 = 843885^2 + 584068^2 .

It is not a de Polignac number, because 1053277321849 - 2²⁷ = 1053143104121 is a prime.

It is a super-2 number, since 2×1053277321849² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1053277321796 and 1053277321805.

It is not an unprimeable number, because it can be changed into a prime (1053277321843) 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 in 2 ways as a sum of consecutive naturals, for example, 513147 + ... + 1539439.

Almost surely, 2^{1053277321849} is an apocalyptic number.

1053277321849 is the 1026293-rd square number.

1053277321849 is the 513147-th centered octagonal number.

It is an amenable number.

1053277321849 is a deficient number, since it is larger than the sum of its proper divisors (1026294).

1053277321849 is an frugal number, since it uses more digits than its factorization.

1053277321849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052586 (or 1026293 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 1053277321849 in words is "one trillion, fifty-three billion, two hundred seventy-seven million, three hundred twenty-one thousand, eight hundred forty-nine".