68194331 has 2 divisors, whose sum is σ = 68194332. Its totient is φ = 68194330.

The previous prime is 68194319. The next prime is 68194349. The reversal of 68194331 is 13349186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68194331 - 2⁶ = 68194267 is a prime.

It is a super-2 number, since 2×68194331² = 9300933561075122, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 68194291 and 68194300.

It is not a weakly prime, because it can be changed into another prime (68194391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34097165 + 34097166.

It is an arithmetic number, because the mean of its divisors is an integer number (34097166).

Almost surely, 2^68194331 is an apocalyptic number.

68194331 is a deficient number, since it is larger than the sum of its proper divisors (1).

68194331 is an equidigital number, since it uses as much as digits as its factorization.

68194331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 68194331 is about 8257.9858924559. The cubic root of 68194331 is about 408.5539600534.

The spelling of 68194331 in words is "sixty-eight million, one hundred ninety-four thousand, three hundred thirty-one".