80181712 has 40 divisors (see below), whose sum is σ = 168365960. Its totient is φ = 36990720.

The previous prime is 80181697. The next prime is 80181719. The reversal of 80181712 is 21718108.

It can be written as a sum of positive squares in 4 ways, for example, as 20830096 + 59351616 = 4564^2 + 7704^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80181719) 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, 34012 + ... + 36292.

It is an arithmetic number, because the mean of its divisors is an integer number (4209149).

Almost surely, 2^80181712 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 80181712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84182980).

80181712 is an abundant number, since it is smaller than the sum of its proper divisors (88184248).

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

80181712 is a wasteful number, since it uses less digits than its factorization.

80181712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 80181712 is about 8954.4241579233. The cubic root of 80181712 is about 431.2129301749.

It can be divided in two parts, 8018 and 1712, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 80181712 in words is "eighty million, one hundred eighty-one thousand, seven hundred twelve".