2185870453 has 8 divisors (see below), whose sum is σ = 2354602208. Its totient is φ = 2017222704.

The previous prime is 2185870439. The next prime is 2185870499. The reversal of 2185870453 is 3540785812.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2185870453 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 (2185870403) 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, 39526 + ... + 77032.

It is an arithmetic number, because the mean of its divisors is an integer number (294325276).

Almost surely, 2^2185870453 is an apocalyptic number.

It is an amenable number.

2185870453 is a deficient number, since it is larger than the sum of its proper divisors (168731755).

2185870453 is a wasteful number, since it uses less digits than its factorization.

2185870453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42003.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 2185870453 is about 46753.2934989611. The cubic root of 2185870453 is about 1297.8011058389.

The spelling of 2185870453 in words is "two billion, one hundred eighty-five million, eight hundred seventy thousand, four hundred fifty-three".