149439 has 8 divisors (see below), whose sum is σ = 201520. Its totient is φ = 98496.

The previous prime is 149423. The next prime is 149441. The reversal of 149439 is 934941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149439 - 2⁴ = 149423 is a prime.

It is a Duffinian number.

149439 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99 + ... + 555.

It is an arithmetic number, because the mean of its divisors is an integer number (25190).

2¹⁴⁹⁴³⁹ is an apocalyptic number.

149439 is a deficient number, since it is larger than the sum of its proper divisors (52081).

149439 is a wasteful number, since it uses less digits than its factorization.

149439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its digits is 3888, while the sum is 30.

The square root of 149439 is about 386.5734082939. The cubic root of 149439 is about 53.0666066583.

It can be divided in two parts, 14 and 9439, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 149439 in words is "one hundred forty-nine thousand, four hundred thirty-nine".