8115641 has 6 divisors (see below), whose sum is σ = 8565642. Its totient is φ = 7688160.

The previous prime is 8115593. The next prime is 8115649. The reversal of 8115641 is 1465118.

It can be written as a sum of positive squares in only one way, i.e., 4857616 + 3258025 = 2204^2 + 1805^2 .

It is not a de Polignac number, because 8115641 - 2⁶ = 8115577 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 8115641.

It is not an unprimeable number, because it can be changed into a prime (8115649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10880 + ... + 11601.

It is an arithmetic number, because the mean of its divisors is an integer number (1427607).

Almost surely, 2^8115641 is an apocalyptic number.

It is an amenable number.

8115641 is a deficient number, since it is larger than the sum of its proper divisors (450001).

8115641 is a wasteful number, since it uses less digits than its factorization.

8115641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22519 (or 22500 counting only the distinct ones).

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

The square root of 8115641 is about 2848.7964125223. The cubic root of 8115641 is about 200.9590685859.

The spelling of 8115641 in words is "eight million, one hundred fifteen thousand, six hundred forty-one".