149445144 has 48 divisors (see below), whose sum is σ = 406125720. Its totient is φ = 49645440.

The previous prime is 149445139. The next prime is 149445161. The reversal of 149445144 is 441544941.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 149445099 and 149445108.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 18724 + ... + 25484.

Almost surely, 2^149445144 is an apocalyptic number.

It is an amenable number.

149445144 is an abundant number, since it is smaller than the sum of its proper divisors (256680576).

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

149445144 is a wasteful number, since it uses less digits than its factorization.

149445144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7080 (or 7073 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 149445144 is about 12224.7758261655. The cubic root of 149445144 is about 530.6733390433.

It can be divided in two parts, 149445 and 144, that multiplied together give a triangular number (21520080 = T₆₅₆₀).

The spelling of 149445144 in words is "one hundred forty-nine million, four hundred forty-five thousand, one hundred forty-four".