8161573 has 16 divisors (see below), whose sum is σ = 9824256. Its totient is φ = 6629040.

The previous prime is 8161537. The next prime is 8161579. The reversal of 8161573 is 3751618.

It is a cyclic number.

It is not a de Polignac number, because 8161573 - 2¹³ = 8153381 is a prime.

It is a super-2 number, since 2×8161573² = 133222547668658, which contains 22 as substring.

It is a Duffinian number.

8161573 is a Rhonda number in base 10.

Its product of digits (5040) is a multiple of the sum of its prime divisors (504).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26088 + ... + 26398.

It is an arithmetic number, because the mean of its divisors is an integer number (614016).

Almost surely, 2^8161573 is an apocalyptic number.

It is an amenable number.

8161573 is a deficient number, since it is larger than the sum of its proper divisors (1662683).

8161573 is a wasteful number, since it uses less digits than its factorization.

8161573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its digits is 5040, while the sum is 31.

The square root of 8161573 is about 2856.8466882211. The cubic root of 8161573 is about 201.3374774985.

The spelling of 8161573 in words is "eight million, one hundred sixty-one thousand, five hundred seventy-three".