68154129 has 20 divisors (see below), whose sum is σ = 106239936. Its totient is φ = 43459416.

The previous prime is 68154127. The next prime is 68154133. The reversal of 68154129 is 92145186.

It is not a de Polignac number, because 68154129 - 2¹ = 68154127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68154093 and 68154102.

It is not an unprimeable number, because it can be changed into a prime (68154127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16429 + ... + 20154.

Almost surely, 2^68154129 is an apocalyptic number.

68154129 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68154129 is a deficient number, since it is larger than the sum of its proper divisors (38085807).

68154129 is a wasteful number, since it uses less digits than its factorization.

68154129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36618 (or 36609 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 68154129 is about 8255.5514049638. The cubic root of 68154129 is about 408.4736605393.

The spelling of 68154129 in words is "sixty-eight million, one hundred fifty-four thousand, one hundred twenty-nine".