68124131 has 2 divisors, whose sum is σ = 68124132. Its totient is φ = 68124130.

The previous prime is 68124127. The next prime is 68124157. The reversal of 68124131 is 13142186.

It is an a-pointer prime, because the next prime (68124157) can be obtained adding 68124131 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68124131 - 2² = 68124127 is a prime.

It is a super-2 number, since 2×68124131² = 9281794449010322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68124131.

It is not a weakly prime, because it can be changed into another prime (68124181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34062065 + 34062066.

It is an arithmetic number, because the mean of its divisors is an integer number (34062066).

Almost surely, 2^68124131 is an apocalyptic number.

68124131 is a deficient number, since it is larger than the sum of its proper divisors (1).

68124131 is an equidigital number, since it uses as much as digits as its factorization.

68124131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 68124131 is about 8253.7343669396. The cubic root of 68124131 is about 408.4137219303.

The spelling of 68124131 in words is "sixty-eight million, one hundred twenty-four thousand, one hundred thirty-one".