149771444 has 12 divisors (see below), whose sum is σ = 262185924. Its totient is φ = 74861184.

The previous prime is 149771437. The next prime is 149771467. The reversal of 149771444 is 444177941.

149771444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 94090000 + 55681444 = 9700^2 + 7462^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19484 + ... + 26060.

It is an arithmetic number, because the mean of its divisors is an integer number (21848827).

Almost surely, 2^149771444 is an apocalyptic number.

It is an amenable number.

149771444 is a deficient number, since it is larger than the sum of its proper divisors (112414480).

149771444 is a wasteful number, since it uses less digits than its factorization.

149771444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274 (or 12272 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 149771444 is about 12238.1143972427. The cubic root of 149771444 is about 531.0592840866.

The spelling of 149771444 in words is "one hundred forty-nine million, seven hundred seventy-one thousand, four hundred forty-four".