8161575 has 12 divisors (see below), whose sum is σ = 13493928. Its totient is φ = 4352800.

The previous prime is 8161537. The next prime is 8161579. The reversal of 8161575 is 5751618.

8161575 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8161575 - 2⁶ = 8161511 is a prime.

It is a super-2 number, since 2×8161575² = 133222612961250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54336 + ... + 54485.

It is an arithmetic number, because the mean of its divisors is an integer number (1124494).

Almost surely, 2^8161575 is an apocalyptic number.

8161575 is a deficient number, since it is larger than the sum of its proper divisors (5332353).

8161575 is a wasteful number, since it uses less digits than its factorization.

8161575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108834 (or 108829 counting only the distinct ones).

The product of its digits is 8400, while the sum is 33.

The square root of 8161575 is about 2856.8470382574. The cubic root of 8161575 is about 201.3374939445.

The spelling of 8161575 in words is "eight million, one hundred sixty-one thousand, five hundred seventy-five".