149812 has 24 divisors (see below), whose sum is σ = 293216. Its totient is φ = 66528.

The previous prime is 149803. The next prime is 149827. The reversal of 149812 is 218941.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

149812 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 in 7 ways as a sum of consecutive naturals, for example, 2203 + ... + 2269.

2¹⁴⁹⁸¹² is an apocalyptic number.

It is an amenable number.

149812 is a deficient number, since it is larger than the sum of its proper divisors (143404).

149812 is a wasteful number, since it uses less digits than its factorization.

149812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 125 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 149812 is about 387.0555515685. The cubic root of 149812 is about 53.1107214222.

It can be divided in two parts, 149 and 812, that added together give a square (961 = 31²).

The spelling of 149812 in words is "one hundred forty-nine thousand, eight hundred twelve".