11152838449 has 3 divisors (see below), whose sum is σ = 11152944057. Its totient is φ = 11152732842.

The previous prime is 11152838447. The next prime is 11152838467. The reversal of 11152838449 is 94483825111.

The square root of 11152838449 is 105607.

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 is not a de Polignac number, because 11152838449 - 2¹ = 11152838447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11152838399 and 11152838408.

It is not an unprimeable number, because it can be changed into a prime (11152838447) 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, 52804 + ... + 158410.

It is an arithmetic number, because the mean of its divisors is an integer number (3717648019).

Almost surely, 2^11152838449 is an apocalyptic number.

11152838449 is the 105607-th square number.

11152838449 is the 52804-th centered octagonal number.

It is an amenable number.

11152838449 is a deficient number, since it is larger than the sum of its proper divisors (105608).

11152838449 is an frugal number, since it uses more digits than its factorization.

11152838449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211214 (or 105607 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The spelling of 11152838449 in words is "eleven billion, one hundred fifty-two million, eight hundred thirty-eight thousand, four hundred forty-nine".