2043154453 has 4 divisors (see below), whose sum is σ = 2062991008. Its totient is φ = 2023317900.

The previous prime is 2043154447. The next prime is 2043154471. The reversal of 2043154453 is 3544513402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043154453 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 (2043154403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9918123 + ... + 9918328.

It is an arithmetic number, because the mean of its divisors is an integer number (515747752).

Almost surely, 2^2043154453 is an apocalyptic number.

It is an amenable number.

2043154453 is a deficient number, since it is larger than the sum of its proper divisors (19836555).

2043154453 is a wasteful number, since it uses less digits than its factorization.

2043154453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19836554.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 2043154453 is about 45201.2660552777. The cubic root of 2043154453 is about 1268.9185107605.

Adding to 2043154453 its reverse (3544513402), we get a palindrome (5587667855).

The spelling of 2043154453 in words is "two billion, forty-three million, one hundred fifty-four thousand, four hundred fifty-three".