80803156 has 36 divisors (see below), whose sum is σ = 166507488. Its totient is φ = 34205808.

The previous prime is 80803133. The next prime is 80803157. The reversal of 80803156 is 65130808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80803157) 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 11 ways as a sum of consecutive naturals, for example, 13785 + ... + 18751.

It is an arithmetic number, because the mean of its divisors is an integer number (4625208).

Almost surely, 2^80803156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80803156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83253744).

80803156 is an abundant number, since it is smaller than the sum of its proper divisors (85704332).

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

80803156 is a wasteful number, since it uses less digits than its factorization.

80803156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5068 (or 5059 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 80803156 is about 8989.0575701794. The cubic root of 80803156 is about 432.3240952166.

It can be divided in two parts, 8080 and 3156, that added together give a square (11236 = 106²).

The spelling of 80803156 in words is "eighty million, eight hundred three thousand, one hundred fifty-six".