8141561 has 8 divisors (see below), whose sum is σ = 8456448. Its totient is φ = 7830000.

The previous prime is 8141533. The next prime is 8141569. The reversal of 8141561 is 1651418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8141561 - 2¹⁰ = 8140537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8141561.

It is not an unprimeable number, because it can be changed into a prime (8141569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4886 + ... + 6336.

It is an arithmetic number, because the mean of its divisors is an integer number (1057056).

Almost surely, 2^8141561 is an apocalyptic number.

It is an amenable number.

8141561 is a deficient number, since it is larger than the sum of its proper divisors (314887).

8141561 is a wasteful number, since it uses less digits than its factorization.

8141561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663.

The product of its digits is 960, while the sum is 26.

The square root of 8141561 is about 2853.3420755318. The cubic root of 8141561 is about 201.1727844410.

Adding to 8141561 its reverse (1651418), we get a palindrome (9792979).

The spelling of 8141561 in words is "eight million, one hundred forty-one thousand, five hundred sixty-one".