2140538453 has 8 divisors (see below), whose sum is σ = 2151516696. Its totient is φ = 2129587200.

The previous prime is 2140538443. The next prime is 2140538497. The reversal of 2140538453 is 3548350412.

It can be written as a sum of positive squares in 4 ways, for example, as 321771844 + 1818766609 = 17938^2 + 42647^2 .

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 2140538453 - 2¹⁰ = 2140537429 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 (2140538443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163013 + ... + 175653.

It is an arithmetic number, because the mean of its divisors is an integer number (268939587).

Almost surely, 2^2140538453 is an apocalyptic number.

It is an amenable number.

2140538453 is a deficient number, since it is larger than the sum of its proper divisors (10978243).

2140538453 is a wasteful number, since it uses less digits than its factorization.

2140538453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13495.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 2140538453 is about 46265.9534971452. The cubic root of 2140538453 is about 1288.7668148127.

Adding to 2140538453 its reverse (3548350412), we get a palindrome (5688888865).

The spelling of 2140538453 in words is "two billion, one hundred forty million, five hundred thirty-eight thousand, four hundred fifty-three".