718081 has 12 divisors (see below), whose sum is σ = 890112. Its totient is φ = 567216.

The previous prime is 718051. The next prime is 718087. The reversal of 718081 is 180817.

It is not a de Polignac number, because 718081 - 2⁵ = 718049 is a prime.

It is a super-2 number, since 2×718081² = 1031280645122, which contains 22 as substring.

It is a Duffinian number.

718081 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 880 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (74176).

2⁷¹⁸⁰⁸¹ is an apocalyptic number.

It is an amenable number.

718081 is a deficient number, since it is larger than the sum of its proper divisors (172031).

718081 is a wasteful number, since it uses less digits than its factorization.

718081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 718081 is about 847.3966013621. The cubic root of 718081 is about 89.5483961595.

Adding to 718081 its reverse (180817), we get a palindrome (898898).

The spelling of 718081 in words is "seven hundred eighteen thousand, eighty-one".