68549231 has 2 divisors, whose sum is σ = 68549232. Its totient is φ = 68549230.

The previous prime is 68549227. The next prime is 68549249. The reversal of 68549231 is 13294586.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68549231 - 2² = 68549227 is a prime.

It is a super-2 number, since 2×68549231² = 9397994141382722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68549291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34274615 + 34274616.

It is an arithmetic number, because the mean of its divisors is an integer number (34274616).

Almost surely, 2^68549231 is an apocalyptic number.

68549231 is a deficient number, since it is larger than the sum of its proper divisors (1).

68549231 is an equidigital number, since it uses as much as digits as its factorization.

68549231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 68549231 is about 8279.4462979115. The cubic root of 68549231 is about 409.2614724023.

The spelling of 68549231 in words is "sixty-eight million, five hundred forty-nine thousand, two hundred thirty-one".