168541429 has 6 divisors (see below), whose sum is σ = 196058454. Its totient is φ = 144464040.

The previous prime is 168541379. The next prime is 168541453. The reversal of 168541429 is 924145861.

It can be written as a sum of positive squares in only one way, i.e., 101465329 + 67076100 = 10073^2 + 8190^2 .

It is a de Polignac number, because none of the positive numbers 2^k-168541429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168541391 and 168541400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168541459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1719762 + ... + 1719859.

It is an arithmetic number, because the mean of its divisors is an integer number (32676409).

Almost surely, 2^168541429 is an apocalyptic number.

It is an amenable number.

168541429 is a deficient number, since it is larger than the sum of its proper divisors (27517025).

168541429 is an equidigital number, since it uses as much as digits as its factorization.

168541429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439635 (or 3439628 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 168541429 is about 12982.3506731254. The cubic root of 168541429 is about 552.3769621535.

The spelling of 168541429 in words is "one hundred sixty-eight million, five hundred forty-one thousand, four hundred twenty-nine".