718231 has 4 divisors (see below), whose sum is σ = 719992. Its totient is φ = 716472.

The previous prime is 718187. The next prime is 718241. The reversal of 718231 is 132817.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 718231 - 2⁹ = 717719 is a prime.

It is a super-2 number, since 2×718231² = 1031711538722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718241) 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 3 ways as a sum of consecutive naturals, for example, 85 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (179998).

2⁷¹⁸²³¹ is an apocalyptic number.

718231 is a deficient number, since it is larger than the sum of its proper divisors (1761).

718231 is a wasteful number, since it uses less digits than its factorization.

718231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760.

The product of its digits is 336, while the sum is 22.

The square root of 718231 is about 847.4851031139. The cubic root of 718231 is about 89.5546309827.

It can be divided in two parts, 71823 and 1, that added together give a square (71824 = 268²).

The spelling of 718231 in words is "seven hundred eighteen thousand, two hundred thirty-one".