168039229 has 4 divisors (see below), whose sum is σ = 168708960. Its totient is φ = 167369500.

The previous prime is 168039199. The next prime is 168039233. The reversal of 168039229 is 922930861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168039229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168039191 and 168039200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168039299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334489 + ... + 334990.

It is an arithmetic number, because the mean of its divisors is an integer number (42177240).

Almost surely, 2^168039229 is an apocalyptic number.

It is an amenable number.

168039229 is a deficient number, since it is larger than the sum of its proper divisors (669731).

168039229 is an equidigital number, since it uses as much as digits as its factorization.

168039229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669730.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 168039229 is about 12962.9946000143. The cubic root of 168039229 is about 551.8277802816.

The spelling of 168039229 in words is "one hundred sixty-eight million, thirty-nine thousand, two hundred twenty-nine".