68563151 has 2 divisors, whose sum is σ = 68563152. Its totient is φ = 68563150.

The previous prime is 68563141. The next prime is 68563171. The reversal of 68563151 is 15136586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68563151 - 2⁶ = 68563087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68563141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34281575 + 34281576.

It is an arithmetic number, because the mean of its divisors is an integer number (34281576).

Almost surely, 2^68563151 is an apocalyptic number.

68563151 is a deficient number, since it is larger than the sum of its proper divisors (1).

68563151 is an equidigital number, since it uses as much as digits as its factorization.

68563151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 68563151 is about 8280.2868911651. The cubic root of 68563151 is about 409.2891728547.

It can be divided in two parts, 685 and 63151, that added together give a palindrome (63836).

The spelling of 68563151 in words is "sixty-eight million, five hundred sixty-three thousand, one hundred fifty-one".