149943 has 8 divisors (see below), whose sum is σ = 201856. Its totient is φ = 99000.

The previous prime is 149939. The next prime is 149953. The reversal of 149943 is 349941.

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

It is not a de Polignac number, because 149943 - 2² = 149939 is a prime.

It is a Duffinian number.

149943 is a lucky number.

It is a plaindrome in base 8.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 149943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149953) 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, 288 + ... + 618.

It is an arithmetic number, because the mean of its divisors is an integer number (25232).

2¹⁴⁹⁹⁴³ is an apocalyptic number.

149943 is a deficient number, since it is larger than the sum of its proper divisors (51913).

149943 is a wasteful number, since it uses less digits than its factorization.

149943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

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

The square root of 149943 is about 387.2247409451. The cubic root of 149943 is about 53.1261974355.

The spelling of 149943 in words is "one hundred forty-nine thousand, nine hundred forty-three".