149684 has 12 divisors (see below), whose sum is σ = 273504. Its totient is φ = 71544.

The previous prime is 149629. The next prime is 149689. The reversal of 149684 is 486941.

It is a self number, because there is not a number n which added to its sum of digits gives 149684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149689) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 722 + ... + 905.

It is an arithmetic number, because the mean of its divisors is an integer number (22792).

2¹⁴⁹⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

149684 is a deficient number, since it is larger than the sum of its proper divisors (123820).

149684 is a wasteful number, since it uses less digits than its factorization.

149684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 1652 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 149684 is about 386.8901652924. The cubic root of 149684 is about 53.0955911046.

The spelling of 149684 in words is "one hundred forty-nine thousand, six hundred eighty-four".