2153568743 has 4 divisors (see below), whose sum is σ = 2153732688. Its totient is φ = 2153404800.

The previous prime is 2153568727. The next prime is 2153568773. The reversal of 2153568743 is 3478653512.

2153568743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2153568743 - 2⁴ = 2153568727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2153568694 and 2153568703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153568773) 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, 60371 + ... + 89172.

It is an arithmetic number, because the mean of its divisors is an integer number (538433172).

Almost surely, 2^2153568743 is an apocalyptic number.

2153568743 is a deficient number, since it is larger than the sum of its proper divisors (163945).

2153568743 is a wasteful number, since it uses less digits than its factorization.

2153568743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163944.

The product of its digits is 604800, while the sum is 44.

The square root of 2153568743 is about 46406.5592669829. The cubic root of 2153568743 is about 1291.3766012902.

The spelling of 2153568743 in words is "two billion, one hundred fifty-three million, five hundred sixty-eight thousand, seven hundred forty-three".