168929481 has 8 divisors (see below), whose sum is σ = 257416384. Its totient is φ = 96531120.

The previous prime is 168929479. The next prime is 168929507. The reversal of 168929481 is 184929861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168929481 - 2¹ = 168929479 is a prime.

It is a super-2 number, since 2×168929481² = 57074339101858722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168929481.

It is not an unprimeable number, because it can be changed into a prime (168929401) 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 7 ways as a sum of consecutive naturals, for example, 4022110 + ... + 4022151.

It is an arithmetic number, because the mean of its divisors is an integer number (32177048).

Almost surely, 2^168929481 is an apocalyptic number.

It is an amenable number.

168929481 is a deficient number, since it is larger than the sum of its proper divisors (88486903).

168929481 is an equidigital number, since it uses as much as digits as its factorization.

168929481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044271.

The product of its digits is 248832, while the sum is 48.

The square root of 168929481 is about 12997.2874477716. The cubic root of 168929481 is about 552.8005705369.

The spelling of 168929481 in words is "one hundred sixty-eight million, nine hundred twenty-nine thousand, four hundred eighty-one".