68757231 has 16 divisors (see below), whose sum is σ = 100418400. Its totient is φ = 41653248.

The previous prime is 68757179. The next prime is 68757259. The reversal of 68757231 is 13275786.

It is not a de Polignac number, because 68757231 - 2⁹ = 68756719 is a prime.

It is a super-2 number, since 2×68757231² = 9455113629574722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68757231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68757131) 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, 21766 + ... + 24723.

It is an arithmetic number, because the mean of its divisors is an integer number (6276150).

Almost surely, 2^68757231 is an apocalyptic number.

68757231 is a deficient number, since it is larger than the sum of its proper divisors (31661169).

68757231 is a wasteful number, since it uses less digits than its factorization.

68757231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46538.

The product of its digits is 70560, while the sum is 39.

The square root of 68757231 is about 8291.9980101300. The cubic root of 68757231 is about 409.6749972504.

The spelling of 68757231 in words is "sixty-eight million, seven hundred fifty-seven thousand, two hundred thirty-one".