2143454413 has 4 divisors (see below), whose sum is σ = 2144566368. Its totient is φ = 2142342460.

The previous prime is 2143454407. The next prime is 2143454431. The reversal of 2143454413 is 3144543412.

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 not a de Polignac number, because 2143454413 - 2⁵ = 2143454381 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 (2143457413) 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 3 ways as a sum of consecutive naturals, for example, 553081 + ... + 556942.

It is an arithmetic number, because the mean of its divisors is an integer number (536141592).

Almost surely, 2^2143454413 is an apocalyptic number.

It is an amenable number.

2143454413 is a deficient number, since it is larger than the sum of its proper divisors (1111955).

2143454413 is a wasteful number, since it uses less digits than its factorization.

2143454413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111954.

The product of its digits is 23040, while the sum is 31.

The square root of 2143454413 is about 46297.4557940283. The cubic root of 2143454413 is about 1289.3517591161.

Adding to 2143454413 its reverse (3144543412), we get a palindrome (5287997825).

The spelling of 2143454413 in words is "two billion, one hundred forty-three million, four hundred fifty-four thousand, four hundred thirteen".