8157361 has 4 divisors (see below), whose sum is σ = 8183412. Its totient is φ = 8131312.

The previous prime is 8157343. The next prime is 8157379. The reversal of 8157361 is 1637518.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8157343) and next prime (8157379).

It can be written as a sum of positive squares in 2 ways, for example, as 490000 + 7667361 = 700^2 + 2769^2 .

It is a cyclic number.

It is not a de Polignac number, because 8157361 - 2⁵ = 8157329 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8157301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12550 + ... + 13183.

It is an arithmetic number, because the mean of its divisors is an integer number (2045853).

Almost surely, 2^8157361 is an apocalyptic number.

It is an amenable number.

8157361 is a deficient number, since it is larger than the sum of its proper divisors (26051).

8157361 is a wasteful number, since it uses less digits than its factorization.

8157361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26050.

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

The square root of 8157361 is about 2856.1094166716. The cubic root of 8157361 is about 201.3028363258.

The spelling of 8157361 in words is "eight million, one hundred fifty-seven thousand, three hundred sixty-one".