8723103161 has 4 divisors (see below), whose sum is σ = 8728721652. Its totient is φ = 8717484672.

The previous prime is 8723103157. The next prime is 8723103173. The reversal of 8723103161 is 1613013278.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2738533561 + 5984569600 = 52331^2 + 77360^2 .

It is a cyclic number.

It is not a de Polignac number, because 8723103161 - 2² = 8723103157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8723103101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2806916 + ... + 2810021.

It is an arithmetic number, because the mean of its divisors is an integer number (2182180413).

Almost surely, 2^8723103161 is an apocalyptic number.

It is an amenable number.

8723103161 is a deficient number, since it is larger than the sum of its proper divisors (5618491).

8723103161 is a wasteful number, since it uses less digits than its factorization.

8723103161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618490.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 8723103161 is about 93397.5543630560. The cubic root of 8723103161 is about 2058.5290628073.

The spelling of 8723103161 in words is "eight billion, seven hundred twenty-three million, one hundred three thousand, one hundred sixty-one".