68071151 has 2 divisors, whose sum is σ = 68071152. Its totient is φ = 68071150.

The previous prime is 68071147. The next prime is 68071163. The reversal of 68071151 is 15117086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68071151 - 2² = 68071147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68071121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34035575 + 34035576.

It is an arithmetic number, because the mean of its divisors is an integer number (34035576).

Almost surely, 2^68071151 is an apocalyptic number.

68071151 is a deficient number, since it is larger than the sum of its proper divisors (1).

68071151 is an equidigital number, since it uses as much as digits as its factorization.

68071151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 68071151 is about 8250.5242863711. The cubic root of 68071151 is about 408.3078202950.

The spelling of 68071151 in words is "sixty-eight million, seventy-one thousand, one hundred fifty-one".