149473 has 4 divisors (see below), whose sum is σ = 157360. Its totient is φ = 141588.

The previous prime is 149459. The next prime is 149489. The reversal of 149473 is 374941.

149473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 149473 - 2⁵ = 149441 is a prime.

It is a Duffinian 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 in 3 ways as a sum of consecutive naturals, for example, 3915 + ... + 3952.

It is an arithmetic number, because the mean of its divisors is an integer number (39340).

2¹⁴⁹⁴⁷³ is an apocalyptic number.

It is an amenable number.

149473 is a deficient number, since it is larger than the sum of its proper divisors (7887).

149473 is an equidigital number, since it uses as much as digits as its factorization.

149473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7886.

The product of its digits is 3024, while the sum is 28.

The square root of 149473 is about 386.6173819165. The cubic root of 149473 is about 53.0706308818.

The spelling of 149473 in words is "one hundred forty-nine thousand, four hundred seventy-three".