8001156 has 24 divisors (see below), whose sum is σ = 18723040. Its totient is φ = 2659392.

The previous prime is 8001107. The next prime is 8001157. The reversal of 8001156 is 6511008.

It is not an unprimeable number, because it can be changed into a prime (8001157) 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, 4755 + ... + 6213.

Almost surely, 2^8001156 is an apocalyptic number.

It is an amenable number.

8001156 is an abundant number, since it is smaller than the sum of its proper divisors (10721884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8001156 is a wasteful number, since it uses less digits than its factorization.

8001156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 8001156 is about 2828.6314712242. The cubic root of 8001156 is about 200.0096328694.

The spelling of 8001156 in words is "eight million, one thousand, one hundred fifty-six".