149544 has 48 divisors (see below), whose sum is σ = 424320. Its totient is φ = 47520.

The previous prime is 149543. The next prime is 149551. The reversal of 149544 is 445941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2199 + ... + 2265.

It is an arithmetic number, because the mean of its divisors is an integer number (8840).

149544 is a Friedman number, since it can be written as 4154*9*4, using all its digits and the basic arithmetic operations.

2¹⁴⁹⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212160).

149544 is an abundant number, since it is smaller than the sum of its proper divisors (274776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149544 is a wasteful number, since it uses less digits than its factorization.

149544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 103 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 149544 is about 386.7091930637. The cubic root of 149544 is about 53.0790324400.

The spelling of 149544 in words is "one hundred forty-nine thousand, five hundred forty-four".