68012507 has 2 divisors, whose sum is σ = 68012508. Its totient is φ = 68012506.

The previous prime is 68012411. The next prime is 68012509. The reversal of 68012507 is 70521086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68012507 - 2⁸ = 68012251 is a prime.

It is a super-2 number, since 2×68012507² = 9251402216850098, which contains 22 as substring.

Together with 68012509, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68012507.

It is not a weakly prime, because it can be changed into another prime (68012509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34006253 + 34006254.

It is an arithmetic number, because the mean of its divisors is an integer number (34006254).

Almost surely, 2^68012507 is an apocalyptic number.

68012507 is a deficient number, since it is larger than the sum of its proper divisors (1).

68012507 is an equidigital number, since it uses as much as digits as its factorization.

68012507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 68012507 is about 8246.9695646340. The cubic root of 68012507 is about 408.1905328049.

The spelling of 68012507 in words is "sixty-eight million, twelve thousand, five hundred seven".