80071156 has 48 divisors (see below), whose sum is σ = 163078272. Its totient is φ = 33996800.

The previous prime is 80071153. The next prime is 80071163. The reversal of 80071156 is 65117008.

It is a happy number.

It is a super-2 number, since 2×80071156² = 12822780046352672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80071151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124596 + ... + 125236.

It is an arithmetic number, because the mean of its divisors is an integer number (3397464).

Almost surely, 2^80071156 is an apocalyptic number.

It is an amenable number.

80071156 is an abundant number, since it is smaller than the sum of its proper divisors (83007116).

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

80071156 is a wasteful number, since it uses less digits than its factorization.

80071156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 80071156 is about 8948.2487672170. The cubic root of 80071156 is about 431.0146509448.

The spelling of 80071156 in words is "eighty million, seventy-one thousand, one hundred fifty-six".