68150129 has 2 divisors, whose sum is σ = 68150130. Its totient is φ = 68150128.

The previous prime is 68150123. The next prime is 68150143. The reversal of 68150129 is 92105186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49210225 + 18939904 = 7015^2 + 4352^2 .

It is a cyclic number.

It is not a de Polignac number, because 68150129 - 2¹⁶ = 68084593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68150095 and 68150104.

It is not a weakly prime, because it can be changed into another prime (68150123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34075064 + 34075065.

It is an arithmetic number, because the mean of its divisors is an integer number (34075065).

Almost surely, 2^68150129 is an apocalyptic number.

It is an amenable number.

68150129 is a deficient number, since it is larger than the sum of its proper divisors (1).

68150129 is an equidigital number, since it uses as much as digits as its factorization.

68150129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 68150129 is about 8255.3091401837. The cubic root of 68150129 is about 408.4656692084.

The spelling of 68150129 in words is "sixty-eight million, one hundred fifty thousand, one hundred twenty-nine".