2043115453 has 8 divisors (see below), whose sum is σ = 2114453880. Its totient is φ = 1971836160.

The previous prime is 2043115411. The next prime is 2043115457. The reversal of 2043115453 is 3545113402.

It can be written as a sum of positive squares in 4 ways, for example, as 1591850404 + 451265049 = 39898^2 + 21243^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2043115453 - 2¹⁷ = 2042984381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043115457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62433 + ... + 89353.

It is an arithmetic number, because the mean of its divisors is an integer number (264306735).

Almost surely, 2^2043115453 is an apocalyptic number.

It is an amenable number.

2043115453 is a deficient number, since it is larger than the sum of its proper divisors (71338427).

2043115453 is a wasteful number, since it uses less digits than its factorization.

2043115453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29567.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2043115453 is about 45200.8346493735. The cubic root of 2043115453 is about 1268.9104369481.

Adding to 2043115453 its reverse (3545113402), we get a palindrome (5588228855).

It can be divided in two parts, 204311 and 5453, that added together give a square (209764 = 458²).

The spelling of 2043115453 in words is "two billion, forty-three million, one hundred fifteen thousand, four hundred fifty-three".