149168 has 10 divisors (see below), whose sum is σ = 289044. Its totient is φ = 74576.

The previous prime is 149161. The next prime is 149173. The reversal of 149168 is 861941.

It is a super-4 number, since 4×149168⁴ (a number of 22 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149168.

It is not an unprimeable number, because it can be changed into a prime (149161) by changing a digit.

149168 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4646 + ... + 4677.

2¹⁴⁹¹⁶⁸ is an apocalyptic number.

It is an amenable number.

149168 is a deficient number, since it is larger than the sum of its proper divisors (139876).

149168 is an equidigital number, since it uses as much as digits as its factorization.

149168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331 (or 9325 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 149168 is about 386.2227336654. Note that the first 3 decimals coincide. The cubic root of 149168 is about 53.0345093872.

The spelling of 149168 in words is "one hundred forty-nine thousand, one hundred sixty-eight".