68158141 has 2 divisors, whose sum is σ = 68158142. Its totient is φ = 68158140.

The previous prime is 68158127. The next prime is 68158169. The reversal of 68158141 is 14185186.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56400100 + 11758041 = 7510^2 + 3429^2 .

It is a cyclic number.

It is not a de Polignac number, because 68158141 - 2⁵ = 68158109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68158097 and 68158106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68158241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34079070 + 34079071.

It is an arithmetic number, because the mean of its divisors is an integer number (34079071).

Almost surely, 2^68158141 is an apocalyptic number.

It is an amenable number.

68158141 is a deficient number, since it is larger than the sum of its proper divisors (1).

68158141 is an equidigital number, since it uses as much as digits as its factorization.

68158141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 34.

The square root of 68158141 is about 8255.7943893971. The cubic root of 68158141 is about 408.4816755302.

The spelling of 68158141 in words is "sixty-eight million, one hundred fifty-eight thousand, one hundred forty-one".