8156 has 6 divisors (see below), whose sum is σ = 14280. Its totient is φ = 4076.

The previous prime is 8147. The next prime is 8161. The reversal of 8156 is 6518.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 8156.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1016 + ... + 1023.

It is an arithmetic number, because the mean of its divisors is an integer number (2380).

2⁸¹⁵⁶ is an apocalyptic number.

It is an amenable number.

8156 is a deficient number, since it is larger than the sum of its proper divisors (6124).

8156 is a wasteful number, since it uses less digits than its factorization.

8156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2041 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 8156 is about 90.3105752390. The cubic root of 8156 is about 20.1291640368.

The spelling of 8156 in words is "eight thousand, one hundred fifty-six".