149428 has 6 divisors (see below), whose sum is σ = 261506. Its totient is φ = 74712.

The previous prime is 149423. The next prime is 149441. The reversal of 149428 is 824941.

149428 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 only one way, i.e., 110224 + 39204 = 332^2 + 198^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149396 and 149405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18675 + ... + 18682.

2¹⁴⁹⁴²⁸ is an apocalyptic number.

It is an amenable number.

149428 is a deficient number, since it is larger than the sum of its proper divisors (112078).

149428 is a wasteful number, since it uses less digits than its factorization.

149428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37361 (or 37359 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 149428 is about 386.5591804627. The cubic root of 149428 is about 53.0653045729.

The spelling of 149428 in words is "one hundred forty-nine thousand, four hundred twenty-eight".