8201561343 has 4 divisors (see below), whose sum is σ = 10935415128. Its totient is φ = 5467707560.

The previous prime is 8201561341. The next prime is 8201561351. The reversal of 8201561343 is 3431651028.

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 8201561343 - 2¹ = 8201561341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8201561341) 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, 1366926888 + ... + 1366926893.

It is an arithmetic number, because the mean of its divisors is an integer number (2733853782).

Almost surely, 2^8201561343 is an apocalyptic number.

8201561343 is a deficient number, since it is larger than the sum of its proper divisors (2733853785).

8201561343 is a wasteful number, since it uses less digits than its factorization.

8201561343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733853784.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 8201561343 is about 90562.4720455443. The cubic root of 8201561343 is about 2016.6576546767.

The spelling of 8201561343 in words is "eight billion, two hundred one million, five hundred sixty-one thousand, three hundred forty-three".