8161315 has 8 divisors (see below), whose sum is σ = 10002240. Its totient is φ = 6389952.

The previous prime is 8161273. The next prime is 8161319. The reversal of 8161315 is 5131618.

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 8161315 - 2⁷ = 8161187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8161315.

It is not an unprimeable number, because it can be changed into a prime (8161319) 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, 17130 + ... + 17599.

It is an arithmetic number, because the mean of its divisors is an integer number (1250280).

Almost surely, 2^8161315 is an apocalyptic number.

8161315 is a deficient number, since it is larger than the sum of its proper divisors (1840925).

8161315 is a wasteful number, since it uses less digits than its factorization.

8161315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34781.

The product of its digits is 720, while the sum is 25.

The square root of 8161315 is about 2856.8015331836. The cubic root of 8161315 is about 201.3353559460.

The spelling of 8161315 in words is "eight million, one hundred sixty-one thousand, three hundred fifteen".