168129379 has 12 divisors (see below), whose sum is σ = 192841488. Its totient is φ = 146197040.

The previous prime is 168129361. The next prime is 168129383. The reversal of 168129379 is 973921861.

It is a happy number.

It is not a de Polignac number, because 168129379 - 2⁷ = 168129251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168129079) 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 11 ways as a sum of consecutive naturals, for example, 27424 + ... + 32989.

It is an arithmetic number, because the mean of its divisors is an integer number (16070124).

Almost surely, 2^168129379 is an apocalyptic number.

168129379 is a deficient number, since it is larger than the sum of its proper divisors (24712109).

168129379 is a wasteful number, since it uses less digits than its factorization.

168129379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60458 (or 60447 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 168129379 is about 12966.4713395742. The cubic root of 168129379 is about 551.9264445065.

The spelling of 168129379 in words is "one hundred sixty-eight million, one hundred twenty-nine thousand, three hundred seventy-nine".