8173541 has 4 divisors (see below), whose sum is σ = 8180172. Its totient is φ = 8166912.

The previous prime is 8173537. The next prime is 8173547. The reversal of 8173541 is 1453718.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1256641 + 6916900 = 1121^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 8173541 - 2² = 8173537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8173547) 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, 860 + ... + 4133.

It is an arithmetic number, because the mean of its divisors is an integer number (2045043).

Almost surely, 2^8173541 is an apocalyptic number.

It is an amenable number.

8173541 is a deficient number, since it is larger than the sum of its proper divisors (6631).

8173541 is a wasteful number, since it uses less digits than its factorization.

8173541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6630.

The product of its digits is 3360, while the sum is 29.

The square root of 8173541 is about 2858.9405380315. The cubic root of 8173541 is about 201.4358421188.

The spelling of 8173541 in words is "eight million, one hundred seventy-three thousand, five hundred forty-one".